The compound interest accrued on an amount of Rs. 22,000 at the end of two years is Rs. 5,596.8. What would be the simple interest accrued on the same amount at the same rate in the same period ? 

A motorboat, whose speed is 45 km./hr. in still water goes 180 km. downstream and comes back in a total of 9 hours. The speed of the stream (in km/hr.) is-

The simple interest on a sum of money for 10 year is Rs. 3130. If the principal becomes 5 times after 5 years, then what will be the total interest (in Rs) obtained after 10 years? 

A sum of money becomes 4 times at simple interest in 10 years. What is the rate of interest?

If 8, X and 50 are in continued proportion, then the value of x is

A money - lender, lends a part of his money at 10 % per annum and the rest at 15 % per annum. His annual income is 1,900. However, if he had interchanged rate of interest on the two sums, he would have earn 200 more. The amount lent will fatch what amount at 15 % ? 

The mode and median of the data 8, 6, 8, 7, 8, 6, 8, 7, 6 is

Direction: Study the double bar graph given below and answer the questions.

The average of the number of students participating in cultural events is: