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Recent questions tagged math
Questions
If x = 2+\sqrt{3} find the value of x^2+\large\frac{1}{x^2}
olympiad
class9
math
number systems
asked
Aug 26, 2015
by
pady_1
0
answers
simplify 4\sqrt{2}-2\sqrt{8}+\large\frac{3}{\sqrt{2}}
olympiad
class9
math
number systems
asked
Aug 26, 2015
by
pady_1
0
answers
Simplify \sqrt[4]{\large\frac{1008}{63}}
olympiad
class9
math
number systems
asked
Aug 26, 2015
by
pady_1
0
answers
If x^2 = 0.4 the value of x is
olympiad
class9
math
number systems
asked
Aug 26, 2015
by
pady_1
0
answers
The value of {{2^2}^2}^2
olympiad
class9
math
number systems
asked
Aug 26, 2015
by
pady_1
0
answers
If a^x = 1 the possible value of x
olympiad
class9
math
number systems
asked
Aug 26, 2015
by
pady_1
0
answers
subtract 3\sqrt{5} from 5\sqrt{125}
olympiad
class9
math
number systems
asked
Aug 26, 2015
by
pady_1
0
answers
Divide 8\sqrt{15} by 2\sqrt{3}
olympiad
class9
math
number systems
asked
Aug 26, 2015
by
pady_1
0
answers
simplify 5\sqrt{7}/10\sqrt{35}
olympiad
class9
math
number systems
asked
Aug 26, 2015
by
pady_1
0
answers
Multiply (\sqrt{3}+2)(\sqrt{3}-2)
olympiad
class9
math
number systems
asked
Aug 26, 2015
by
pady_1
0
answers
which of the following is equal to x
olympiad
class9
math
number systems
asked
Aug 26, 2015
by
pady_1
0
answers
\large\frac{1}{\sqrt9-\sqrt8} is equal to
olympiad
class9
math
number systems
asked
Aug 26, 2015
by
pady_1
0
answers
The number obtained on rationalising the denominator of \large\frac{1}{\sqrt7-2}
olympiad
class9
math
number systems
asked
Aug 26, 2015
by
pady_1
0
answers
The value of 1.99 in the form \large\frac{p}{q} where p and q are integers and q \neq 0 is
olympiad
class9
math
number systems
asked
Aug 26, 2015
by
pady_1
0
answers
The decimal expansion of the number \sqrt{2} is
olympiad
class9
math
number systems
asked
Aug 26, 2015
by
pady_1
0
answers
A rational between \sqrt{2} and \sqrt{3} is
olympiad
class9
math
number systems
asked
Aug 26, 2015
by
pady_1
0
answers
which of the following is irrational
olympiad
class9
math
number systems
asked
Aug 26, 2015
by
pady_1
0
answers
Between two rational numbers
olympiad
class9
math
number systems
asked
Aug 26, 2015
by
pady_1
0
answers
Every rational number is a
olympiad
class9
math
number systems
asked
Aug 26, 2015
by
pady_1
0
answers
Express \frac{1}{9} as a decimal fraction
olympiad
class9
math
number systems
asked
Aug 26, 2015
by
pady_1
0
answers
Simplify by rationalising the denominator\frac{ 4}{\sqrt7+sqrt3}
olympiad
class9
math
number systems
asked
Aug 26, 2015
by
pady_1
0
answers
Examine whether the given number is rational or irrational \frac{(2-\sqrt{2})}{(2+\sqrt{2})}
olympiad
class9
math
number systems
asked
Aug 26, 2015
by
pady_1
0
answers
Find the value of a and b if \frac {\sqrt{ 3}-1}{\sqrt{3}+1} = a+b\sqrt{3}
olympiad
class9
math
number systems
asked
Aug 26, 2015
by
pady_1
0
answers
Today is Tuesday . After 62 days it will be :
olympiad
class8
math
ch-14
everyday-mathematics
asked
Aug 26, 2015
by
meena.p
1
answer
How many days are there from 2nd January 1995 to 15th march 1995
olympiad
class8
math
ch-14
everyday-mathematics
asked
Aug 26, 2015
by
meena.p
1
answer
Arun and Sajal are friends. Each has some money. If Arun gives ` 30 to Sajal, then Sajal will have twice the money left with Arun. But, if Sajal gives ` 10 to Arun, then Arun will have thrice as much as is left with Sajal. How much money does Arun and Sajal have ?
olympiad
class9
math
everyday mathematics
asked
Aug 26, 2015
by
pady_1
0
answers
A group of students decided to collect as many paise from each member of the group as the number of members. If the total collection amounts to ` 59.29, the number of members in the group is ___.
olympiad
class9
math
everyday mathematics
asked
Aug 26, 2015
by
pady_1
0
answers
An item costs $ \$8.50$ to produce. How much should the manufacturer sell these items for if wants to realise a profit of 15% on these items? Give your answer to the nearest penny.
olympiad
class9
math
everyday mathematics
asked
Aug 26, 2015
by
pady_1
0
answers
In a department $10\%$ of the staff have a salary of $\$20,000, 30\%$ a salary of $\$25,000, 50\%$ a salary of $\$30,000, 10\%$ a salary of $\$40,000$. What is the average salary?
olympiad
class9
math
everyday mathematics
asked
Aug 26, 2015
by
pady_1
0
answers
Surprisingly, there is always a large amount of lager and beer consumed in October. Past years has shown that a good predictor for consumption of lager and beer in October is given by adding 50% on to the consumption of lager in September, and by adding 40% on to the consumption of beer in September. What price for lager should the Union charge, based on this prediction, so that the predicted total income in October for beer and lager sales is $110,000?
olympiad
class9
math
everyday mathematics
asked
Aug 26, 2015
by
pady_1
0
answers
A product costing 60 cents per unit to produce had been selling at the average rate of 1,200,000 units per month. After the product was improved, sales increased to an average of 2,000,000 units per month. However, the new product cost five percent more to produce. If the manufacturer's selling price in each instance was 75 cents per unit, what was the manufacturer's added profit per month with the newer product?
olympiad
class9
math
everyday mathematics
asked
Aug 26, 2015
by
pady_1
1
answer
A certain preparation consists of liquids x, y, and z in the proportion 5:2:1. How many gallons of the preparation can be made from a stock of materials consisting of 25 gallons of x, 20 gallons of y, and 8 gallons of z?
olympiad
class9
math
everyday mathematics
asked
Aug 26, 2015
by
pady_1
0
answers
The total cost for three items of work on a car was $\$154$. These items were: overhaul of the carburettor, replace brake pads and a tuneup. Overhaul of the carburettor cost twice as much as the tune-up. Brake pads cost one-third as much as the carburettor overhaul. What did the tune-up cost?
olympiad
class9
math
everyday mathematics
asked
Aug 26, 2015
by
pady_1
0
answers
In a certain department, 15% of the females and 25% of the males are working on a project. 60% of the department is female. What percentage of the department is working on the project?
olympiad
class9
math
everyday mathematics
asked
Aug 26, 2015
by
pady_1
1
answer
A picture on a page was reduced on a copier to $60\%$ of its original size, and this copy was then reduced by $20\%$. What percentage of the size of the original picture was the final copy?
olympiad
class9
math
everyday mathematics
asked
Aug 26, 2015
by
pady_1
1
answer
The selling price of a box of chocolates is $\$6.00$. This price was $20\%$ greater than the cost to produce the box. How much did it cost to produce a box and what was the profit?
olympiad
class9
math
everyday mathematics
asked
Aug 26, 2015
by
pady_1
0
answers
A train 270 m long is moving at a speed of 24 kmph. It will cross a man coming from the opposite direction at a speed of 3 kmph, in
olympiad
class9
math
everyday mathematics
asked
Aug 26, 2015
by
pady_1
0
answers
A train 110 m long passes a man, running at 6 kmph in the direction opposite to that of the train, in 6 seconds. The speed of the train is
olympiad
class9
math
everyday mathematics
asked
Aug 26, 2015
by
pady_1
1
answer
train 108 m long moving at a speed of 50 km/hr crosses a train 112 m long coming from opposite direction in 6 seconds. The speed of the second train is
olympiad
class9
math
everyday mathematics
asked
Aug 26, 2015
by
pady_1
0
answers
Two trains travel in opposite directions at 36 kmph and 45 kmph and a man sitting in slower train passes the fasten train in 8 seconds. The length of the faster train is
olympiad
class9
math
everyday mathematics
asked
Aug 26, 2015
by
pady_1
0
answers
A train overtakes two persons who are walking in the same direction in which the train is going, at the rate of 2 kmph and 4 kmph and passes them completely in 9 and 10 seconds respectively. The length of the train is
olympiad
class9
math
everyday mathematics
asked
Aug 26, 2015
by
pady_1
0
answers
A train X starts from A at 4 P.M. and reaches B at 5 P.M. while another train Y starts from B at 4 P.M. and reaches A, at 5.30 PM. The two trains will cross each other at
olympiad
class9
math
everyday mathematics
asked
Aug 26, 2015
by
pady_1
0
answers
Two trains are running in opposite directions towards each other with speeds of 54 kmph and 48 kmph respectively. If the length of one train is 250 m and they cross each other in 18 seconds, the length of the other train is
olympiad
class9
math
everyday mathematics
asked
Aug 26, 2015
by
pady_1
0
answers
A train traveling at 48 kmph completely crosses another train having half its length and traveling in opposite direction at 42 kmph, in 12 seconds. It also passes a railway platform in 45 seconds. The length of the platform is
olympiad
class9
math
everyday mathematics
asked
Aug 26, 2015
by
pady_1
0
answers
A train of length 150 m takes 10 seconds to pass over another train 100 m long coming from the opposite direction. If the speed of the first train be 30 kmph, the speed of the second train is
olympiad
class9
math
everyday mathematics
asked
Aug 26, 2015
by
pady_1
0
answers
A train covers a distance of 10 km in 12 minutes. If its speed is decreased by 5 km/hr the time taken by it to cover the same distance will be
olympiad
class9
math
everyday mathematics
asked
Aug 26, 2015
by
pady_1
0
answers
A train 280 m long is moving at 60kmph. The time taken by the train to cross a tunnel 220 m long is
olympiad
class9
math
everyday mathematics
asked
Aug 26, 2015
by
pady_1
2
answers
A train traveling at a speed of 90kmph crosses a pole in 10 seconds. The length of the train is
olympiad
class9
math
everyday mathematics
asked
Aug 26, 2015
by
pady_1
1
answer
A train 700 m long is running at 72kmph. If it crosses a tunnel in I minute, the length of the length of the tunnel is
olympiad
class9
math
everyday mathematics
asked
Aug 26, 2015
by
pady_1
0
answers
If a 200 m long train crosses a platform of the same length as that of the train in 20 seconds, then the speed of the train is
olympiad
class9
math
everyday mathematics
asked
Aug 26, 2015
by
pady_1
0
answers
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