Start learning 50% faster. Sign in now
Time taken by Nikhil to complete the whole work alone = 10/0.40 = 25 days Let the total work = 25 units Efficiency of (Akhil + Nikhil) = 25/5 = 5 units/day Efficiency of Nikhil = 25/25 = 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 = 25/5 = 5 days
A certain amount earns simple interest of Rs. 1600 after 4 years. Had the interest been 6% more, how much more interest would it have earned?
The simple interest earned on a certain sum after 6 years at 17% p.a. is Rs. 10,200 more than the simple interest earned on the same sum after 3 years ...
The interest earned on investing Rs. 9000 for 2 years at the rate of 10% p.a., compounded annually, is used to purchase an article. If the article is la...
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...
The interest received by investing Rs. 4500 for 2 years at compound interest of 20% p.a., compounded annually, was re-invested for 3 years at simple int...
'P' allocated different portions of his savings, totaling Rs. 100,000, to three banks. The first portion was invested in Axis Bank at a simple interest ...
Rs. 28000 invested for 2 years in a scheme offering compound interest (compounded annually) of 15% p.a. gives an interest that is Rs. 40 less than the i...
A certain sum when invested for 3 years in a scheme offering simple interest of 12% p.a. gives an interest of Rs. 990. What is 120% of the sum invested?
A person invest some amount in a business into 2 parts. If he invest 1st part at 8% for 3 years and 2nd part invest at 7(1/2)% p.a. for 4 years. Total S...
If the difference between C.I. and S.I. is Rs. 512 at 20% rate of interest in 3 years, then find the principal on C.I.?