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Total distance = (60 × 2) + (80 × 3) + (100 × 1) = 120 + 240 + 100 = 460 km. Total time = 2 + 3 + 1 = 6 hours. Average speed = Total distance / Total time = 460 / 6 = 76.67 km/h. Correct answer: b. 76.67 km/h
A certain sum invested at compound interest of 10% p. a compounded annually, returns Rs. 6292 after 2 years. If a 20% greater sum is invested at a simpl...
A certain sum of money amounts to ₹12,600 in 2 years and ₹14,490 in 3 years at compound interest. Find the rate of interest per annum.
A person invested 6,000 in a bank at compound interest compounded annually. After 3 years, the sum became 7,986. What was the rate of interest?
Avantika gets a SI of Rs.4800 on a certain principal at the rate of 6%p.a. in 4 years. What CI will she get on twice the principal in two years at the ...
The compound interest received on investing Rs. 4000 for 2 years at a compound interest of 20% p. a compounded annually is how much percentage more than...
Raman invested Rs. 70,000 in a bank offering 10% compound interest per annum for 2 years. After 2 years, he used the total amount to start a business wi...
The compound interest on Rs. 30,000 at 7%per annum for n years is Rs. 4347. The value of n is
Compound interest on a certain sum of money for 2 years is Rs.2660 while the simple interest on the same sum for the same time period is Rs.2500. Find t...
Krishna lends ₹48000 to Neelam for a year at 25% interest per annum, compounded half yearly. Find the interest that must be paid by Neelam.
The simple interest on a sum of money will be Rs. 800 after 10 years. If the principal is tripled after 5 years, what will be total interest at the end ...
