** Question No : 8**

A and B can together complete a piece of work in 4 days. If A alone can complete the same work in 12 days, in how many days can B alone complete that work ?

6 days

5 days

8 days

7 days

** Question No : 9**

Mr. Rocky is on tour and he has Rs 360 for his expenses. If he exceeds his tour by 4 days he must cut down daily expenses by Rs 3. The number of days of Mr. Ram's tour programme is

24 days

22 days

28 days

20 days

** Question No : 10**

A can finish a work in 18 days and B can do same work in half the time taken by A. then working together, what part of same work they can finish in a day

1/6

1

1/8

1/9

** Question No : 11**

A tyre has two punctures. The first puncture alone would have made the tyre flat in 9 minutes and the second alone would have done it in 6 minutes. If air leaks out at a constant rate, how long does it take both the punctures together to make it flat ?

$3\frac{1}{5}min$

$3\frac{2}{5}min$

$3\frac{3}{5}min$

$3\frac{4}{5}min$

** Question No : 12**

A is twice as good as workman as B and together they finish a piece of work in 18 days. In how many days will B alone finish the work.

50 days

54 days

55 days

60 days

** Question No : 13**

A man can do a piece of work in 5 days, but with the help of his son he can do it in 3 days. In what time can the son do it alone ?

$4\frac{1}{2}days$

$5\frac{1}{2}days$

$6\frac{1}{2}days$

$7\frac{1}{2}days$

** Question No : 14**

A can do a job in 16 days, B can do same job in 12 days. With the help of C they did the job in 4 days. C alone can do the same job in how many days ?

$9\frac{3}{5}days$

$8\frac{3}{5}days$

$5\frac{1}{2}days$

$4\frac{1}{2}days$