SSC CGL Tier-2 4th-September-2011 Maths

Of three numbers,the second is thrice the first and the third number is three-fourth of the first. If the average of the three numbers is 114, the largest number is

A car covers $$\frac{1}{5}$$  of the distance from A to B at the speed at 8 km/hr, $$\frac{1}{10}$$ of the distance at 25 km per hour and the remaining at the speed of 20 km per hour. Find the average speed of the whole journey.

A jar contains 10 red marbles and 30 green ones. How many red marbles must be added to the jar so that 60% of the  marbles will be red?

If a number multiplied by 25% of itself gives a number which is 200% more than the number, then the numberis

The value on an article depreciates every year at the rate of 10% of its value. If the present value of the article isRs. 729,then its worth 3 years ago was

The price of onions has been increased by 50%. In orderto keep the expenditure on onions the same the percentage of reduction in consumption has to be

Walking at 3 km per hour, Pintu reaches his school 5 minutes late. If he walks at 4 km per hour he will be 5 minutes early. The distance of Pintu’s school from his house is

Nitin bought some oranges at Rs. 40 a dozen and an equal number at Rs. 30 a dozen. He sold them at Rs. 45 a dozen and made a profit of Rs. 480. The number of oranges, he bought, was

A man buys two chairs for a total cost of Rs. 900. By selling one for $$\frac{4}{5}$$ of its cost and the other for $$\frac{5}{4}$$ 
of its cost, he makes a profit of Rs. 90 on the whole transaction. The cost of the lower priced chair is

By selling 100 oranges, a vendor gains the selling price of 20 oranges. His gain percent is