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Downstream speed of the boat = x + 1.25x = 2.25x km/hr For I: 2.25x = 810/18 => 2.25x = 45 => x = 20 Therefore, speed of boat in still water = 1.25x = 25 km/hr Therefore, I is false. For II: 2.25x = 810/12 => 2.25x = 67.5 => x = 30 Therefore, speed of boat in still water = 1.25x = 37.5 km/hr Therefore, II is true. For III: 2.25x = 810/18 => 2.25x = 45 => x = 20 Therefore, speed of the boat in still water = 1.25x = 25 km/hr Therefore, III is false.
Abhishek allocates Rs.1600 each into two different investment schemes, A and B. Scheme A provides simple interest annually at a rate of (R-2)%, while sc...
A certain amount earns simple interest of Rs. 1420 after 4 years. Had the interest been 5% more, how much more interest would it have earned?
A man invested Rs. 's' in scheme 'G' offering simple interest at 8% for 5 years and Rs. 2,200 in scheme 'H' offering simple interest at 9% for 4 years. ...
Anil borrowed Rs.10000 on CI at the rate of 20% for three years. He paid at the end of first year (1/8)th of amount and end of second year (1/6)th of am...
Sam invested a certain sum in scheme A for 5 years and in scheme B for 3 years, a sum which was double of that invested in scheme A. Both the schemes of...
A certain amount of money, when invested at a simple interest rate of 'r%' per annum, grows to 6 times its original value in 24 y...
What would be the annual interest accrued on a deposit of Rs.24,550 in a bank that pays a 22% per annum rate of simple interest?
The amount in a bank account after 3 years is ₹1350 when the interest is compounded annually at a rate of 10%. What was the principal amount?
Suppose a specific amount is invested in a Life insurance policy at a simple interest rate of 15% per annum for 2 years, the interest earned amounts to ...