In the afternoon, a student read 100 pages at the rate of 60 pages per hour. In the evening, when she was tired, she read 100 more pages at the rate of 40 pages per hour. What was her average rate of reading the pages per hour? 

Find the inradius of a triangle having sides 13, 14 and 15 units.

The graph of the equation 4x - 5y = 20 intersects the X-axis at the point.

By a selling basket for Rs. 19.50, a shopkeeper gains 30 %. For how much should he sell it to gain 40 %? 

Mr. Duggal invested Rs. 20, 000 with rate of interest at 20 p.c.p.a. The interest was compounded half yearly for first year and in the next year it was compounded yearly. What will be the total interest earned at the end of two years? 

Direction (94-98): Study the following table to answer the given questions.
         Centre and Post-wise Numbered of candidate

Which centre has 300% more number of Clerks as compared to Bangalore?

The smallest number which should be added to the number 8958 so that the result is a perfect square is