Question
The difference between the compound interest and simple
interest on a certain sum for 2 years at 12% per annum is 144. Find the principal amount.Solution
Let the principal be P 144 = PΓ 144/10000 P = 10,000
Karan, Arjun and Krunal alone can complete a work in 40, 60 and 48 days respectively. All of them started working together but after 3 days from start K...
Mira is 40% more efficient than Priya, and Neha is 10% more efficient than Mira. If Neha and Mira together can do a piece of work in 15 days, in how man...
- Ajay completes half the work done by Rohit in 5/6 of the time. If they together finish the work in 18 days, how much time will Rohit take to complete the w...
3 men, 4 women and 5 boys can do a piece of work in 15 days, 20 days and 25 days respectively. For first 3 days 3 men and 2 women work together and for ...
'P', 'Q', and 'R', working in unison, can complete an assignment in 10 days. 'P' and 'Q' finish it in 12 days, while 'Q' and 'R' complete it in 15 days....
'A' and 'B' can do a piece of work together in 30 days. They worked together for 18 days, and then left the work. The remaining job was finished by 'C' ...
βPβ can complete a project in 12 days. βQβ is 40% less efficient than βPβ. Working together, βPβ, βQβ and βRβ can finish the job...
4 girls can do work in 8 days, 3 boys can do the same work in 9 days, 7 men in 2 days, and 5 women in 4 days. Who is the least efficient?
- 50% of the work done by Meena in 2 days is equal to 25% of the work done by Lata in 5 days. If Meena can complete the job alone in 10 days, then how long w...
Akhil and Nikhil together can complete a work in 10 days while Nikhil alone takes 15 days to complete 30% of the work. If the efficiency of Sachin is 25...