A sum of ₹ 400 amounts to ₹ 480 in 4 years. What will it amount to if the rate of interest is increased by 2 %? 

Of the three numbers, the sum of the first two is 55, sum of the second and third is 65 and sum of third with thrice of the first is 110. The third number is: 

A man read 2/5 part of a book in 1st day, 34% in second day and remaining page in next two days. In two days he read equal number of page. If he read 52 page on last day, then find out how many page did the book contain? 

One watch which gains uniformly is one minute slow at 1 pm on Tuesday and it is two minutes fast at 1 am on the following Friday. When had it shown the correct time?

Direction: Study the following graph and answer the given question.

In which year, there has been a maximum percentage increase in the amount invested in raw materials as compared to the previous year?

The compound interest earned in two years at 12% per annum Rs 10176. What is the sum (in Rs) invested? 

The largest and the second largest angle of a triangle are in the ratio of 13:12 respectively. The smallest angle is 20% of the sum of the largest and the second largest angles. What is the sum of the smallest and the second largest angles?

If 12x – 15 y =9x + 5y, the value of $$ {x^{2}+{y^{2}}\over{x^{2}-y^{2}}}$$ is