IBPS Clerk 2019 | Time and Work | Maths

1. A is 30% more efficient that B. How much time will they, working together take to complete a job which A alone could have done in 23 days?
[a] 20 days
[b] 17 days
[c] 15 days
[d] 13 days
[e] None of these

2. The A and B and do a work in the ratio of 2:5 respectively. If A and B work together they can complete the work in 10 days. In how many days B will complete the work independently.
[a] 35 days
[b] 14 days
[c] 21 days
[d] 70 days
[e] None of these

3. A is thrice as good as workman as B and therefore is able to finish a job in 60 days less than B, working together, they can do it in how many days?
[a] 45 days
[b] 22.5 days
[c] 15 days
[d] 45.5 days
[e] None of these

4. A does half as much work as B in three fourth of the time. If together they take 18 days to complete the work, how much time shall B take to do it alone.
[a] 45 days
[b] 30 days
[c] 60 days
[d] 90 days

5. Anjan is friend of Mukul and the ratio of their efficiency is 7 : 5. Working together they complete 40% work in 8 days and remaining work is completed by Anjan. If for doing work Anjan received Rs. 24000. Find the amount that Mukul will receive.
[a] 5000
[b] 4700
[c] 4500
[d] 4200
[e] None of the above

6. Amit and Bhanu can do a piece of work in 9 and 18 days, respectively. As they were ill, they could do 45% and 90% of their efficiency, respectively. How many days will they take to complete the work together?
[a] 10 days
[b] 15 days
[c] 20 days
[d] 24 days
[e] None of these

7. Due to fever efficiency of Ramesh is reduced by 40% hence he takes 12 more days than earlier to complete. If next day he starts working with 50% of his original efficiency. Now in how many days he will complete the total work?
[a] 36 days
[b] 45 days
[c] 30 days
[d] 60 days
[e] None of these

8. A is 20% less efficient that B. A started the work and work for x days after which B replaced A and completed the remaining work in (x-7) days. If the ratio of work done by A and B is 3 : 2. Working together they will complete the whole work in how many days?
[a] 5(7/23) days
[b] 11(1/9) days
[c] 4(7/23) days
[d] 7 days
[e] None of these

9. A and B can complete a work in half the time of C, While B and C can complete the same work in one-third time than A. If they together complete the work in 20 days. In how many days A alone can do the same work?
[a] 60 days
[b] 48 days
[c] 80 days
[d] 72 days
[e] None of these

10.Ramu completes 30% of work in 7.5 days. Raju is 50% as efficient as Ramu, Venu is 50% as efficient as Raju. Now Raju and Venu joined with Ramu for the rest of the work then in how many days will take to complete the work? [a] 9 Days
[b] 10 Days
[c] 12 Days
[d] 15 Days
[d]None of these