The total of the ages of a class of 75 girls is 1050 years, the average age of 25 of them is 12 years and that of another 25 is 16 years. Find the average of the remaining girls?

If the product of two successive positive integers is 6162, which is the smaller integer?

The simple interest accrued on an amount of Rs. 10,530 at the end of 5 years is Rs. 6,318. What is the rate of interest p.c.p.a.?

What is the approximate value should come in place of the question mark (?) in the following question?

      54.786  ÷  10.121  x  4.454  =  ?

A plot of 640 sq. ft. is available at the rate of Rs. 4,600 per sq. ft. If 30% of the total cost of the plot is to be paid for booking the plot, how much is the booking amount?

The owner of a computer shop charges his customer 13% more than the cost price. If a customer paid Rs. 15,933 for a computer, then what was the cost price of the computer?

The cost of 12 note-books and 16 pens is Rs. 852. What is the cost of 9 note-books and 12 pens?

A sum of money is divided among A, B, C and D in the ratio of 3 : 7 : 9 : 13 respectively. If the share of B is Rs. 4,872, then what is the total amount of money of A and C together?

In an examination it is required to get 310 of the aggregate marks to pass. A student gets 28% marks and is declared failed by 93 marks. What are the maximum aggregate marks a student can get?

The difference between 67% of a number and 43% of the same number is 912. What is 19% of that number?

If an amount of Rs. 85,470 is distributed equally amongst 35 children, how much amount would each child get?