The area of two equilateral triangles are in the ratio 25 : 36 . Their altitudes will be in the ratio: 

A wholesaler had 200 dozen of mangoes. He sold some of these mangoes at 20 % profit and the rest at 10 % profit, so that he made 13 % profit on selling all the mangoes. How many mangoes in dozens) did he sell at 20 % profit? 

Ram saves 14 % of his salary while Shyam saves 22 % . If both get the same salary and Shyam saves 1540, what is the savings of Ram? 

Rashid borrowed Rs.15000 at the rate of 10% p.a. rate of compound interest, compound annually. He repaid a certain amount at the end of the first. Then he paid Rs. 12100 at the end of the 2nd year to completely discharge the loan. What amount did he repay at the end of 1st year?

In the given figure AD ‖ BC, if ∠ABC=72°, then ∠BCD=?

A school play ground is 120 m long and 80 m wide, there is 2 m wide path parallel to its width and and Parallel to its length. The area of remaining ground.

A pipe of diameter ‘d’ can drain a certain water tank in 40 minutes. The time taken by a pipe of diameter ‘2d’ for doing the same job in: