A builder borrows Rs.2550 to be paid back with compound interest at the rate of 4% per annum by the end of 2 yr in two equal yearly installments. How much will each installment be?
Rs.500 was invested at 12% per annum simple interest and a certain sum of money at 10% per annum simple interest. If the sum of the interests on both the sums after 4 yr is Rs.480, the latter sum of money is
The average marks of 14 students calculated as 71. But it was later found that the marks of one student had been wrongly entered as 42 instead of 56 and of another as 74 instead of 32. The correct average is
A sum of money doubles itself in 12 yr if invested at simple interest. What is the rate of interest allowed on the investment?
The average age of four brother is 12 yr. If the age of their mother is also included. The average is increased by 5 yr. The age of mother (in years) is
The HCF of two numbers is 23 and other two factors of their LCM are 13 and 14. The larger of two numbers is
The number nearest to 10000 which is exactly divisible by each of 3, 4, 5, 6, 7 and 8 is
13 
