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Start learning 50% faster. Sign in nowTime taken by Nikhil to complete the whole work alone = 18/0.30 = 60 days Let the total work = 60 units Efficiency of (Akhil + Nikhil) = 60/12 = 5 units/day Efficiency of Nikhil = 60/60 = 1 units/day Efficiency of Akhil = 5 - 1 = 4 units/day Therefore efficiency of Sachin = 1.25 x 4 = 5 units/day Time taken by Sachin to complete the whole work alone = 60/5 = 12 days
A man deposited 25% of his salary to a bank which offers compound interest at the rate of 10% p.a. If the interest earned by him from the bank after 2 y...
Akshay invested Rs. 1050 in two schemes P and Q in the respective ratio of 5:2. Scheme P and Q are offering simple interest at the rate of 8% per annum ...
Bittu, Tittu and Mitthu invested Rs. 80000, Rs. 100000 and Rs. 120000 respectively to start a business. Partnership condition is that, each will get int...
Ravi invests Rs. 2,000 on simple interest at 'a%' p.a. for 4 years and earned an interest of Rs. 800. His friend Vinay invests Rs. 4,800 on simple inter...
Some amount out of Rs. 12000 was lent out at 10% per annum and the rest amount @ 16% per annum and thus in 5 years the total interest from both the amou...
A sum of Rs. 6120 is invested at simple interest for 2 years. If the rate interest for first year is 15% p.a. while 25% p.a. for second year, then find ...
Calculate the difference between the simple interest and compound interest accrued on an amount of Rs. 1600 over a period of 2 years at an annual intere...
A certain sum of money becomes Rs. 1500 in 1 year and 2800 in 3 years at certain rate of simple interest. Find the sum of money invested.
The certain sum amounts to Rs 9,982.50 in 2(1/2) years at 12% p.a., interest compounded 10-monthly. The sum (in Rs) is:
