Question
A man does double the work done by a boy in the same
time. The number of days that 3 men and 4 boys will take to finish a work which can be done by 10 men in 8 days isSolution
work done by man : work done by boy = 2: 1 let work done by a man in 1 day = 2 units let work done by a boy in 1 day = 1 units work done by 10 men in 8 days = 10 × 2 × 8 = 160 units work done by 3 men and 4 boys in 1 day = 3 × 2 + 4 × 1 = 10 units number of days = 160/10 = 16 days
Jack is twice efficient as Jill and Jill can do a piece of work in 30 days. Jill started the work and after a few days Jack joined him. They completed t...
- A team of 6 workers, each working 8 hours per day, can build a 200-metre-long wall in 15 days. How many workers would be needed to construct a 300-metre-lo...
 Saurabh can complete a piece of work in 20 days. He worked for 5 days and left. Anirudh completed the remaining work in 12 days. If both had done the ...
P and Q can complete a work in 28 days and 42 days, respectively. P, Q and R together can complete the work in 14 days. If R get a total wage of Rs. 546...
A can complete a work in 15 days. B takes 6 days less than A to complete the same work. In how many days can both of them together complete 80% of the w...
- Varun and Arnav can finish a work in 28 days and 56 days respectively when working alone. Varun starts first. In how many days should Arnav join him so tha...
A and B together can complete a work in 15 days, while B and C together can complete the same work in 20 days. If A, B, and C together can complete the ...
Ajay and Vijay together can paint a piece of furniture in 11 days. Vijay and Chirag together, as well as Ajay and Chirag together...
A takes 24 hours more than B to complete the work, and 32 hours more than C to complete the same work. The combined time taken by A and B to finish the ...
- 'X' can complete 75% of a work in 15 days, whereas 'Y' can complete 25% of the same work in 10 days. They both started working together, but 'Y' left the j...
