Recent questions tagged ch-8

The line $\large\frac{x}{a} +\frac{y}{b} $$=1$ touches _________

asked Nov 5, 2014 by meena.p

1 answer

The graph of $y=-4$ is parallel to

asked Oct 14, 2014 by meena.p

1 answer

The graph of $x=-1$ is parallel to

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 _______

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 ________

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 .

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

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 ______

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

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 .

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

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 _______

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

asked Oct 13, 2014 by meena.p

1 answer

The value of C for the following system of equation has no solution . $cx +3y =3; 12x +cy=6$ is _________

asked Oct 13, 2014 by meena.p

1 answer

Number of values K can have for the following system of equation $4x+ 5y =3; kx+15y=9$

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 $4x- 5y =k;2x - 3y =12$

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

asked Oct 13, 2014 by meena.p

1 answer

For what value of k will the following system of equations have infinitely many solution? $2x + 3y=4;(k+2)x+6y=3k+2$

asked Oct 13, 2014 by meena.p

1 answer

For what value of a and b will the following system of linear equations have infinitely many solution? $2x - (a-4)y=2b+1;4x-(a-1)y =5b-1$

asked Oct 13, 2014 by meena.p

1 answer

The value of k for which the system of equation has infinitely many solutions is __________

asked Oct 13, 2014 by meena.p

1 answer

The given system of equation is $kx +3y-(k-3)=0;12x+ky -k=0$ For infinitely many solutions, the value of k is ________

asked Oct 13, 2014 by meena.p

1 answer

The value of k for which the given system of equations has infinitely many solution is $(k-3)x +3y=k;kx+ky=12$ is

asked Oct 13, 2014 by meena.p

1 answer

A cylindrical vessel of height $25\; cm$ and diameter $15\; cm$ on the base is filled with sand. This bucket is emptied on the ground and a conical heap of sand is formed. The height of the conical heap is $30 \;cm$,the radius of its base is ____ cm

asked Oct 13, 2014 by meena.p

1 answer

A cylindrical vessel of height $24\; cm$ and $12\; cm$ diameter of the base is filled with sand . This bucket is emptied on the ground and a conical heap of sand is formed . The height of the conical heap is formed . The height of the conical heap is $24\;cm$, the radius of the base is _______ cm( approx)

asked Oct 13, 2014 by meena.p

1 answer

A cylindrical vessel of height $24\; cm$ and $15\; cm$ as radius of the base is filled with sand. This bucket is emptied on the ground and a conical heap of sand is formed. The height of the conical heap is $24\;cm$ , the radius of the base is _______ cm (approx)

asked Oct 13, 2014 by meena.p

1 answer

A cylindrical vessel of height 30 cm and 12 cm as radius of the base is filled with sand. This bucket is emptied on the ground and a conical heap of sand is formed. The height of the conical heap is $25\;cm$ , the radius of the base is _______ cm (approx)

asked Oct 13, 2014 by meena.p

1 answer

A cylindrical vessel of height $25 \;cm$ and $10\;cm$ as the radius of the base is filled with sand. This bucket is emptied on the ground and a conical heap of sand is formed. The height of the conical heap is $28 \;cm$ the radius of its base is ______ cm.

asked Oct 13, 2014 by meena.p

1 answer

A boy is cycling such that the wheels of the cycle are making $120$ revolutions per minute. If the diameter of the wheel is $90\;cm$ , then the speed per hour with which the boy is cycling is _______ km / hr(approx)

asked Oct 13, 2014 by meena.p

1 answer

The diameter of the front and rear wheels of a tractor are $80\;cm$ and $2\;m$ respectively. The no of revolutions that rear wheel will make to cover the distance which the front wheel cover in $1400$ revolution is ________

asked Oct 13, 2014 by meena.p

1 answer

A boy is cycling such that the wheels of the cycle are revolving at the rate of $140$ revolutions per minute. If the diameter of the wheel is $60\;cm$ then the speed per hour with which the boy is cycling is _________ km/hr

asked Oct 13, 2014 by meena.p

1 answer

The diameter of a wheel of a bus is $90 \;cm$ which makes $3/5$ revolution per minute. Then the speed of the bus is ___km/hr(approx)

asked Oct 10, 2014 by meena.p

1 answer

A bicycle wheel makes 5000 revolution in moving 11 km. Then the diameter of the wheel is _______

asked Oct 10, 2014 by meena.p

1 answer

A sphere is placed in a cone of height $8.4 \;cm$ The volume of the sphere if it touches the lateral surface and the base of the cone is _____ $cm^3$

asked Oct 10, 2014 by meena.p

1 answer

A sphere is placed in a cone of height $15.3\;cms$. The volume of the sphere if it touches the lateral surface and the base of the cone is _____ $cm^3$

asked Oct 10, 2014 by meena.p

1 answer

A sphere is placed in a cone of height 12 cm. The volume of the sphere if it touches the lateral surface and base of the cone is _____ $cm^3$

asked Oct 10, 2014 by meena.p

1 answer

Marbles of diameter $1.4 \;cm$ are dropped into a cylindrical beaker of diameter $7\;cm$ , Containing some water. The number of marbles that should be dropped into the beaker so that the water level increases by $5.6\;cm$ is _______

asked Oct 10, 2014 by meena.p

1 answer

Marbles of diameter $1.4 \;cm$ are dropped into a cylindrical beaker of diameter $7 \;cm$, containing some water. The number of marbles that should be dropped into the beaker so that the water level lines by $5.6\; cm$ is ________

asked Oct 10, 2014 by meena.p

0 answers

A sphere of diameter $6\; cm$ is dropped into a circular cylindrical vessel partly filled with water. The diameter of the vessel is $12\; cm$ . If the sphere is completely submerged in water the rise in the level of water in the vessel is ____ cm

asked Oct 10, 2014 by meena.p

1 answer

Lead sphere of diameter $6\;cm$ are dropped into a cylindrical beaker containing some water and are fully submerged. The diameter of the beaker is 18 cm and the rise in the level of water is $40 \;cm$. The number lead sphere dropped in the water is

asked Oct 10, 2014 by meena.p

1 answer

A cylindrical jar of radius $6\; cm$ contain oil. Iron spheres each of radius $1.5\; cm$ are immersed in the oil. How many spheres are necessary to raise the level of the oil two centimeters ?

asked Oct 10, 2014 by meena.p

1 answer

A cylindrical vessel of diameter $8\;cm$ is partly filled with water . 600 lead balls are dropped into it. The rise in water level is $0.8 \;cm$ . The diameter of each ball is

asked Oct 7, 2014 by meena.p

1 answer

The area of a circle and a square are the same . If the area of the circle is $3500\;cm^2$ , the distance covered when 7 rounds are taken round the square (approx) is

asked Oct 7, 2014 by meena.p

1 answer

The area of a circle and an equilateral triangle are the same. If the area of the circle is $17320\;sq\;cm$, the distance covered when 9 round are taken round the triangle is _______ cm.

asked Oct 7, 2014 by meena.p

1 answer

The area of a circle and an equilateral triangle are the same. If the area of the equilateral triangle is $17320\;sq\;cm$, the distance covered when 9 rounds are taken round the circle is ________ cm

asked Oct 7, 2014 by meena.p

1 answer

The area of circle and a square are the same. If the area of the circle is $3696\;cm^2$ , the distance covered when 8 round are taken round the square (approx) is _____ cm.

asked Oct 7, 2014 by meena.p

1 answer

The area of a square and a circle are same. If the area of the square is $3225\;sq\;cm$ the distance covered when 6 rounds are taken round the circle (approx) is ____ cm

asked Oct 7, 2014 by meena.p

1 answer

A bucket has top and bottom diameter as $23\;cm$ and $16 \;cm$ respectively . Its height is $32\;cm$. Then the volume of the bucket is ____$m^3$

asked Oct 6, 2014 by meena.p

2 answers

A function of a cone has a height of $40 \;cm$ and the radii of the top and bottom are $32\;cm$ and $25\;cm$ respectively. The volume of the bucket is _________ $cm^3$

asked Oct 6, 2014 by meena.p

1 answer

The circumference of the top and bottom of a bucket is $154 \;cm$ and $44\;cm$ . The volume of the bucket if its depth is $24\;cm$ is

asked Oct 6, 2014 by meena.p

1 answer

A bucket has to top and bottom diameter of $40\; cm$ and $20 \;cm $ respectively . The volume of the bucket if its depth is $12 \;cm$ is _____ $ cm^3$

asked Oct 6, 2014 by meena.p

1 answer

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