Question

1) A train travels 144 km in 1 hour 30 minutes at a certain speed. How
many kilometers it will travel in 4 hours 45 minutes with the same speed?

2) 8 pipes are required to fill a tank in 1 hour 20 minutes. How long will it
take if only 6 pipes of the same type are used?

3 2 men or 3 women can do a piece of work in 16 days. In how many days
can 4 men and 6 women do the same work?

4) A batch of tablets was packed in 10 boxes with 6 tablets in each box. If the same batch is packed using 12 tablets in each box. How many boxes
would be needed?

5) A and B can do a piece of work in 15 days. B and C in 12 days. C and A 20
days. How many days will be taken by A, B, and C working together to finish the work?

6) A works twice as fast as B. If both of them can together finish a piece of work in 12 hours. In how much time B alone can finish the same work?

7) A pipe can fill a cistern in 9 hours. Due to a leak in its bottom, the cistern fills up to 10 hours. If the cistern is full, in how much time will it be
emptied by the leak?

Answer 1

Answer:

5 boxes

Step-by-step explanation:

(4) A batch of tablets was packed in 10boxes

tablet in each box =6

total no. of tablets =10*6=60

so the same batch is packed again with 12 tabs in each box

total no. of tablets = 60

no. of boxes required = 60/12 = 5

THANKS....