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Recent questions tagged areas-related-to-circles-surface- areas-and-volumes
Questions
The median class for the following distribution is _______
olympiad
math
ch-8
areas-related-to-circles-surface- areas-and-volumes
statistics-and-probability
class10
asked
Nov 10, 2014
by
meena.p
1
answer
The mean of the following data is $20.6$ , then the value of p is _________
olympiad
math
ch-8
areas-related-to-circles-surface- areas-and-volumes
statistics-and-probability
class10
asked
Nov 10, 2014
by
meena.p
1
answer
If the mean of the following distribution is $2.6$ , then the value of k is
sat
math
problem-solving-and-data-analysis
olympiad
ch-8
areas-related-to-circles-surface- areas-and-volumes
statistics-and-probability
class10
asked
Nov 10, 2014
by
meena.p
1
answer
The times in seconds taken by $150$ athletes to run $110 \;m$ hurdle race an given below . The no.of athletes whose completed the race in less than $14.6$ seconds is __________
olympiad
math
ch-8
areas-related-to-circles-surface- areas-and-volumes
statistics-and-probability
class10
asked
Nov 10, 2014
by
meena.p
1
answer
If $x_i$'s are the midpoints of the class intervals of grouped data, $f_i$'s are the corresponding frequencies and I is the mean, then $ \sum (f_i x_i - \bar {x} )$ is equals to ______
olympiad
math
ch-8
areas-related-to-circles-surface- areas-and-volumes
statistics-and-probability
class10
asked
Nov 10, 2014
by
meena.p
1
answer
Two dice are thrown simultaneously. The probability of getting six as product is _________
olympiad
math
ch-8
areas-related-to-circles-surface- areas-and-volumes
statistics-and-probability
class10
asked
Nov 7, 2014
by
meena.p
1
answer
A box of 600 electric bulks contains 12 defective bulks. One bulls is taken out at random from this box. Then the probability that it is a non- defective bulb is ______
olympiad
math
ch-8
areas-related-to-circles-surface- areas-and-volumes
statistics-and-probability
class10
asked
Nov 7, 2014
by
meena.p
0
answers
One card is drawn from a well shiffled deck of 52 cards. Then the probability of drawing 10 of a black suit is _____
olympiad
math
ch-8
areas-related-to-circles-surface- areas-and-volumes
statistics-and-probability
class10
asked
Nov 7, 2014
by
meena.p
1
answer
The probability that a leap year selected at random, will contain 53 sundays is _______
olympiad
math
ch-8
areas-related-to-circles-surface- areas-and-volumes
statistics-and-probability
class10
asked
Nov 7, 2014
by
meena.p
1
answer
Two dice are thrown simultaneously. The probability o getting six as the product is ________
olympiad
math
ch-8
areas-related-to-circles-surface- areas-and-volumes
statistics-and-probability
class10
asked
Nov 7, 2014
by
meena.p
1
answer
On throwing two cubical dice simultaneously, the probability that the sum of the digits on the top faces of the two dice is greater than 7 or less than 7 is
olympiad
math
ch-8
areas-related-to-circles-surface- areas-and-volumes
statistics-and-probability
class10
asked
Nov 7, 2014
by
meena.p
1
answer
The probability of getting a sum greater than 15 on throwing 3 dice is ______
olympiad
math
ch-8
areas-related-to-circles-surface- areas-and-volumes
statistics-and-probability
class10
asked
Nov 7, 2014
by
meena.p
1
answer
When three coins are tossed simultaneously, the probability of getting at least one tail is _______
olympiad
math
ch-8
areas-related-to-circles-surface- areas-and-volumes
statistics-and-probability
class10
asked
Nov 7, 2014
by
meena.p
1
answer
The mean weight of 8 numbers is 15. If each number is multiplied by 2, the new mean is _____
olympiad
math
ch-8
areas-related-to-circles-surface- areas-and-volumes
statistics-and-probability
class10
asked
Nov 6, 2014
by
meena.p
1
answer
The mean of 11 number is 35. If the mean of first 6 number is 32 and that of last 6 number is 37, the sixth number is ______
olympiad
math
ch-8
areas-related-to-circles-surface- areas-and-volumes
statistics-and-probability
class10
asked
Nov 6, 2014
by
meena.p
1
answer
The mean of 5 numbers is 18. If one number is excluded their mean is 16. The excluded number is ________
olympiad
math
ch-8
areas-related-to-circles-surface- areas-and-volumes
statistics-and-probability
class10
asked
Nov 6, 2014
by
meena.p
1
answer
The mean of marks scored by 100 students was found to be 40, Later on it was discovered that a score of 53 was misread as $83$. The correct mean is ______
olympiad
math
ch-8
areas-related-to-circles-surface- areas-and-volumes
statistics-and-probability
class10
asked
Nov 6, 2014
by
meena.p
1
answer
The mean of 5 numbers is 18. If one number is excluded , their mean is $16^{\circ}$. then the excluded number is ________
olympiad
math
ch-8
areas-related-to-circles-surface- areas-and-volumes
statistics-and-probability
class10
asked
Nov 6, 2014
by
meena.p
1
answer
The mode of a frequency distribution can be determined graphically from
olympiad
math
ch-8
areas-related-to-circles-surface- areas-and-volumes
statistics-and-probability
class10
asked
Nov 6, 2014
by
meena.p
1
answer
The median of a given frequency distribution is found graphically with the help of
olympiad
math
ch-8
areas-related-to-circles-surface- areas-and-volumes
statistics-and-probability
class10
asked
Nov 6, 2014
by
meena.p
1
answer
The mean of a discrete frequency distribution $\large\frac{x}{f_i} $$; i=1,2,3,.n$ is given by
olympiad
math
ch-8
areas-related-to-circles-surface- areas-and-volumes
statistics-and-probability
class10
asked
Nov 6, 2014
by
meena.p
1
answer
If $\bar{x}$ is the means of n observations $x_1,x_2,.....x_n$ then the mean of the observations $x_1 -a, x_2 - a, ....... x_n - a$ is _________
olympiad
math
ch-8
areas-related-to-circles-surface- areas-and-volumes
statistics-and-probability
class10
asked
Nov 6, 2014
by
meena.p
1
answer
If $\bar{x}$ is the means of n observations $x_1,x_2,.....x_n$ then the mean of the observations $x_1 +a, x_2 +a, ....... x_n +a$ is _________
olympiad
math
ch-8
areas-related-to-circles-surface- areas-and-volumes
statistics-and-probability
class10
asked
Nov 6, 2014
by
meena.p
1
answer
If $\bar {x} $ is the mean of ten natural numbers $x_1,x_2,x_3......x_{10}$ , then $(x_1 - \bar {x}) +(x_2 - \bar {x})+ ..... (x_{10} - \bar {x} )$ is _______
olympiad
math
ch-8
areas-related-to-circles-surface- areas-and-volumes
statistics-and-probability
class10
asked
Nov 6, 2014
by
meena.p
1
answer
If the numerator of a fraction is multiplied by 2 and its denominator is increased by 2, it becomes $\large\frac{6}{7}$. If instead we multiply by 2 and increase the numerator by 2, it reduces to $\large\frac{1}{2}$ , the fraction is :
olympiad
math
ch-8
areas-related-to-circles-surface- areas-and-volumes
class10
asked
Nov 6, 2014
by
meena.p
1
answer
The ratio of two numbers is $4:1$ . If 5 is added to both the number obtained becomes $3:1$ The numbers are :
olympiad
math
ch-8
areas-related-to-circles-surface- areas-and-volumes
class10
asked
Nov 6, 2014
by
meena.p
1
answer
The denominator of a fraction is 4 more than twice the numerator. When both the numerator and denominator are decreased by 6, then the denominator becomes 12 times the numerator. Then the fraction is
olympiad
math
ch-8
areas-related-to-circles-surface- areas-and-volumes
class10
asked
Nov 6, 2014
by
meena.p
1
answer
The sum of the numerator and denominator of a fraction is 3 less than twice the denominator . If the numerator and denominator are decreased by 1, the numerator becomes half the denominator. Then the faction is
olympiad
math
ch-8
areas-related-to-circles-surface- areas-and-volumes
class10
asked
Nov 6, 2014
by
meena.p
1
answer
If we add 1 to the numerator of a fraction, it reduces to $\large\frac{1}{2}$ . If we subtract 1 from its denominator it reduces to $\large\frac{1}{3}$ . Thus the fraction is _____
olympiad
math
ch-8
areas-related-to-circles-surface- areas-and-volumes
class10
asked
Nov 6, 2014
by
meena.p
1
answer
The given system of equation $=3x+4y =5; \large\frac{9}{2} $$x -6y=\large\frac{15}{2}$has :
olympiad
math
ch-8
areas-related-to-circles-surface- areas-and-volumes
class10
asked
Nov 5, 2014
by
meena.p
1
answer
A system is said to be inconsistent if _______
olympiad
math
ch-8
areas-related-to-circles-surface- areas-and-volumes
class10
asked
Nov 5, 2014
by
meena.p
1
answer
The following system of the equation represents ______ lines . $3x-4y=-7;3x-4y=-9$
olympiad
math
ch-8
areas-related-to-circles-surface- areas-and-volumes
class10
asked
Nov 5, 2014
by
meena.p
1
answer
The value of 'k' for which the system $x+2y=13;(k-1)x+(k+1)y=k+2$ has no solutions is
olympiad
math
ch-8
areas-related-to-circles-surface- areas-and-volumes
class10
asked
Nov 5, 2014
by
meena.p
1
answer
The value of 'k' for which the system $kx+2y-1=0;5x-3y+2=0$ has no solutions is
olympiad
math
ch-8
areas-related-to-circles-surface- areas-and-volumes
class10
asked
Nov 5, 2014
by
meena.p
1
answer
The line $\large\frac{x}{a} +\frac{y}{b} $$=1$ touches _________
olympiad
math
ch-8
areas-related-to-circles-surface- areas-and-volumes
class10
asked
Nov 5, 2014
by
meena.p
1
answer
The graph of $y=-4$ is parallel to
olympiad
math
ch-8
areas-related-to-circles-surface- areas-and-volumes
class10
asked
Oct 14, 2014
by
meena.p
1
answer
The graph of $x=-1$ is parallel to
olympiad
math
ch-8
areas-related-to-circles-surface- areas-and-volumes
class10
asked
Oct 14, 2014
by
meena.p
1
answer
In a bag containing only white and black balls, half the no of white balls is equal to one third of the no. of black balls. twice the total no. of balls exceeds there times the no. of black balls by 4. Hence the no. of balls of each type the bag contains is _______
olympiad
math
ch-8
areas-related-to-circles-surface- areas-and-volumes
class10
asked
Oct 14, 2014
by
meena.p
1
answer
There are two class rooms A and B. If 10 students are sent from A to B , the no. of students in each room is the same. If 20 candidate are sent from B to A , the no of students in A is double the no. of students in B. then the no. of students in each room is ________
olympiad
math
ch-8
areas-related-to-circles-surface- areas-and-volumes
class10
asked
Oct 14, 2014
by
meena.p
1
answer
Sangeetha has towels and handkerchiefs which are 40 together in number . If she had 5 more handkerchiefs and 5 less towels, the number of handkerchiefs becomes four times the number of towels . Find the original number of each .
olympiad
math
ch-8
areas-related-to-circles-surface- areas-and-volumes
class10
asked
Oct 14, 2014
by
meena.p
1
answer
There are two classrooms A and B containing students. If 5 students are shifted from room A to room B, the resulting number of students in the two rooms are equals. If 5 students are shifted from room B to room A becomes double the number of students left in room B. Find the original number of student in the two rooms separately
olympiad
math
ch-8
areas-related-to-circles-surface- areas-and-volumes
class10
asked
Oct 14, 2014
by
meena.p
1
answer
A and B each has some money. If A gives Rs. 30 to B, then B will have twice the money left with A. But if B gives Rs. 10 to A, then A will have twice as much as is left with B. Then A and B has ______
olympiad
math
ch-8
areas-related-to-circles-surface- areas-and-volumes
class10
asked
Oct 14, 2014
by
meena.p
1
answer
A number consist of two digit whose sum is five. when the digits are reversed the number become greater by nine. Then the number is
olympiad
math
ch-8
areas-related-to-circles-surface- areas-and-volumes
class10
asked
Oct 14, 2014
by
meena.p
1
answer
The sum of the digits of a two digit number is 8. and the difference between the number and that formed by reversing the digit is 18. Find the number .
olympiad
math
ch-8
areas-related-to-circles-surface- areas-and-volumes
class10
asked
Oct 14, 2014
by
meena.p
1
answer
The sum of the two digits of a number is 8. If the sum of their squares is 40, then the number is
sat
olympiad
math
ch-8
areas-related-to-circles-surface- areas-and-volumes
class10
asked
Oct 14, 2014
by
meena.p
1
answer
The sum of two numbers is 8. If thus sum is four time their difference , then the numbers are _______
olympiad
math
ch-8
areas-related-to-circles-surface- areas-and-volumes
class10
asked
Oct 14, 2014
by
meena.p
1
answer
The value of k so that the system of linear equation has no solution $(3k+1)x+3y-2=0; (k^2+1)x +(k-2)y-5=0$ is
olympiad
math
ch-8
areas-related-to-circles-surface- areas-and-volumes
class10
asked
Oct 13, 2014
by
meena.p
1
answer
Number of values K can have for the following system of equation $4x+ 5y =3; kx+15y=9$
olympiad
math
ch-8
areas-related-to-circles-surface- areas-and-volumes
class10
asked
Oct 13, 2014
by
meena.p
1
answer
The value of k for which the following system of equations has a unique solution is $4x- 5y =k;2x - 3y =12$
olympiad
math
ch-8
areas-related-to-circles-surface- areas-and-volumes
class10
asked
Oct 13, 2014
by
meena.p
1
answer
The value of k for which the system of equations $kx-y=2; 6x-2y=3$ has unique solution is
olympiad
math
ch-8
areas-related-to-circles-surface- areas-and-volumes
class10
asked
Oct 13, 2014
by
meena.p
1
answer
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