The simple interest on a certain sum for 4 years at the rate of 15% p.a. is ₹4,500 less than the simple interest on the same sum for 6 years at the same rate of interest. Find the sum.
The average of four consecutive odd numbers is 58. What is the lowest number?
At what rate per annum will a sum of ₹6,400 fetch a compound interest (compounded annually) of ₹1,344 in 2 years?
If p:q = 5:2, then p2 - q2 : p2 + q2 = ?
Simplify the following
15 ÷ 5 of 3 x 4 + 8 ÷ 12 of 4 x 12 - 4 ÷ 5 x 20
If there is a profit of 25% on the cost price of an article, the percentage of profit calculated on its selling price will be: