Quantitative Aptitude Test 36

Quantitative Aptitude – Test-41

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1. If Ramesh, Suresh and Harish can do a piece of work in 15 days, 10 days and 6 days respectively, how long will they take to do it, if all the three work at it together ?

 
 
 
 

2. A and B can do a piece of work in 72 days ; B and C can do it in 7 days ; A and C can do it in 90 days. In what time can A alone do it ?

 
 
 
 

3. A and B can do a piece of work in 5 days ; B and C can do it in 7 days ; A and C can do it in 4 days. Who among these will take the least time if put to do it alone ?

 
 
 
 

4. A and B can do a piece of work in 18 days ; B and C can do it in 24 days ; A and C can do it in 36 days. In how many days can they do it all working together ?

 
 
 
 

5. If A, B and C together can finish a piece of work in 4 days ; A alone can do it in 12 days and B in 18 days, then C alone can do it in :

 
 
 
 

6. A can do a certain job in 12 days. B is 60% more efficient than A. The number of days, it takes B to do the same piece of work, is :

 
 
 
 

7. A can do certain job in 25 days which B alone can do in 20 days. A started the work and was joined by B after 10 days. The number of days taken in completing the work was :

 
 
 
 

8. A is twice as good a workman as B and together they finish a piece of work in 14 days. The number of days taken by A alone to finish the work, is :

 
 
 
 

9. A is thrice as good a workman as B and takes 10 days less to do a piece of work than B takes. B alone can do the whole work in :

 
 
 
 

10. A can do a piece of work in 14 days which B can do in 21 days. They begin together but 3 days before the completion of the work, A leaves off. The total number of days to complete the work is :

 
 
 
 

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