Sum of weights of 11 persons = 32 × 11 = 352 kg Sum of weights of 12 persons = (32 + 5) × 12 = 444 kg Weight of new person = 444 – 352 = 92 kg
A sum on simple interest becomes 9/4 times of itself in five years, find the rate of interest.
Out of a total sum of ₹5,000, Danish invested one part at 12% simple interest per annum and the remaining part at 10% simple interest per annum. If th...
Atul has Rs.550 with him. He invested 40% of the amount at 5% p.a. for 6 years and rest at 20% p.a. for 5 years. Find the sum of simple interests receiv...
Simple interest received at the rate of 15% p.a. for 2 years on a principal amount of Rs. 9000 is twice of the simple interest received at 10% p.a. for ...
Compound interest on a certain sum of money for 2 years is Rs.2860 while the simple interest on the same sum for the same time period is Rs.2600. Find t...
Simple interest received at the rate of 20% p.a. for 8 years on a principal amount of Rs. 6000 is twice of the simple interest received at 10% p.a. for ...
David takes a loan of Rs. 20000 from his friend Alex, which he is to return at 10% p.a. simple interest after 5 years. Alex takes...
An amount of Rs. 13,000 is invested at a certain annual compound interest rate, with interest compounded yearly. After 2 years, the total amount grows ...
The difference between the compound interest, compounded annually and simple interest on Rs. ‘P’ at the rate of 25% p.a. for 2 years, is Rs. 120. If...
Anoop invested a sum at a simple interest rate of 8% per annum, and it grew to Rs.1,850 in 6 years. If the same sum is invested at a compound interest r...
