Question
To do a certain work, the ratio of the efficiencies of
A, B and C is 3:5.8. Working together, they can complete the same work in 15 days. If only A and B work together for 12 days and leave, and then C comes to complete the remaining work, for how many days will C work?Solution
According to the question Time taken by A, B, and C together to complete the same work = [15 x (3 + 5 + 8)] units = (15 x 16) units = 240 units Time taken by A and B together = [(3 + 5) x 12] = (8 x 12) units = 96 units The remaining work = (240-96) units = 144 units Now, Time taken by C to complete the remaining work = (144/8) days = 18 days The required time taken by C to complete the remaining work is 18 days.
What will be the CI on a sum of Rs.50,000 after 3 years at the rate of 11%p.a?
...What will be the CI on a sum of Rs.80,000 after 3 years at the rate of 10%p.a? Â
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 ...
Find the compound interest on Rs. 5000 at 12% per annum for 2 years, compounded annually.
A sum of money amounts to Rs. 12100 in 2 years and Rs. 13310 in 3 years at compound interest, compounded annually. What is the principal?
Find the compound interest on Rs 10,000 at 8% per annum, compounded half-yearly, for 1.5 years.
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...
Soni gets a SI of Rs. 3360 on a certain principal at the rate of 7%p.a. in 3 years. What CI will she get on twice the principal in two years at the same...
The compound interest on a certain sum, compounded half-yearly at an annual rate of 20% for one year, is Rs. 540 less than the simple interest on the sa...
The difference of compound interest on Rs. 800 for 1 year at 20% per annum when interest is being compounded. Half-yearly and quarterly
Relevant for Exams:
