Total age of 12 girls = 12 x 35 = 420 years If the age of two more girl is added the average decreases by one and a half year, Total age of 14 girls = 33.5 x 14 = 469 Now, sum of the age of new girls= 469 - 420 = 49 years
A sum of money invested at a certain rate of compound interest per annum amounts to ₹86,800 in 2 years and to ₹95,4800 in 3 years. Find the rate of ...
Divide Rs. 2,440 into two parts such that the first part after 10 years is equal to the second part after 8 years, compound interest being 20% per annum...
A person borrows ₹80,000 at a rate of 10% per annum compound interest. What is the amount after 3 years?
Michael has read 3/4 of a book, while Anna has read only 2/3 of the book she is reading. Both, however, have another 90 pages of their respective books...
What will be the amount payable on Maturity of ₹2,250 invested for three years 20% p.a. interest compounded yearly?
A sum of money amounts to Rs 1024 in 4 years and Rs 1458 in 7 years at a compound rate of interest. What is the rate of interest per annum?
Mr. Kalra borrowed ₹1,55,000 to meet the expenses of his son's education. If the rate of interest is 12% per annum compounded annually, then how much ...
Divide Rs. 53,285 into two parts such that the amount received from first part after 12 years is equal to the amount received from second part after 8 y...
What will be the CI on a sum of Rs.50,000 after 3 years at the rate of 11%p.a?
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