Speed of boat in still water = (D + U)/2 Upstream speed (U) = 50/5 = 10 km/hr Downstream speed (D) = 18/3 = 6 km/hr Speed of boat in still water = (10 + 6)/2 = 16/2 = 8 km/hr
Meera deposited Rs. ‘W’ in a bank offering compound interest of 9% p.a. compounded annually. After 3 years, she invested the amount received from th...
A sum is lent on compound interest for 2 years at 13% p.a. If the compound interest on the sum is Rs.3045.9, find the sum.
Arman Funded an amount at the rate of 6 % for a period of 2 years at C.I. while calculating, the rate of interest was interchanged with the time period ...
A certain sum amounts to ₹13200 after 4 years and to ₹16400 after 8 years at the same rate percent p.a. at simple interest. The simple interest (in ...
A man deposited Rs. 9000 at 10% compound interest, compounded annually while Rs. 8500 at 13% simple interest per annum. What will be the difference betw...
If the simple interest for 6 years be equal to 60% of the principal. It will be equal to the principal after
A man, after making the first investment, earned a total interest of Rs. 1,09,200 at the end of 3 years. He invested a certain amount at an annual compo...
‘J’, ‘K’ and ‘L’, each of them invested Rs. 5000 at the rate of 18% p.a., 22% p.a. and 40% p.a., respectively for 6 years, 5 years and 3 yea...
The simple interest received after 5 years on Rs. (x + 500) at the rate of 20% p.a. is Rs. (2x – 1500). The amount received on Rs. 3x when investe...
A man invested Rs. 'D' at simple interest of 22% and Rs. 'D + 5000' at simple interest of 18% p.a., for 2 years each. If the interest earned from both i...
