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Work done by A and B in one day = 1/12. Work done by B alone in one day = 1/20. Work done by A alone in one day = 1/12 - 1/20 = (5 - 3) / 60 = 2/60 = 1/30. A will take 30 days to complete the work alone. Correct Option: c
Raju and Ramesh started a business with investing capital in the ratio of 9:16. After 5 months, Raju reduced his 1/3 portion of the capital and after 8 ...
If the ratio of the sum invested and simple interest received after 1 year is 25:9 respectively, then find the rate of interest.
The ratio of the monthly expenditure to monthly income is 4:5. If the salary increased by Rs. 4550 such that ratio of old saving and new saving is 2:3, ...
Mr Rohila left his entire property to his wife, daughter and son and the cook. His sons and daughter got half the estate, sharing in the ratio of 3:2. H...
A bag contains notes of Rs.10, Rs.20, and Rs.50 in the ratio of 1:3:5. If the total value of money in the bag is Rs.1920, find the number of Rs.20 notes.
In a wallet, the proportion of one-rupee coins to two-rupee coins is 5:6. Within one section of the wallet, the ratio of one-rupee to two-rupee coins is...
120 cookies were distributed among 20 students in a class such that each boy gets 8 cookies and each girl gets 4 cookies. Find the number of boys in the...