Question

How much time would a machine take to put caps on 300 bottles? Statements:

I) It takes 8 hours to put caps on 300 bottles manually.
II) It takes 2 minutes lesser to put a cap on a bottle using machine than putting it manually.

1)1st statement alone
2)2nd state ment alone
3)both 1st and 2nd
4)not both​

Answer 1

Answer:

the answer is both 1st and 2nd..

Answer 2

4) not both

Explanation:

• We have to find the time taken by a machine to put caps on 300 bottles.

• The first statement gives the time taken to put caps on 300 bottles manually, but we have to find for a machine.

• The second statement has a condition that states the time taken by a machine (a comparison of time taken).

• So we assume that we have to take both the 1st and the 2nd statement to find the required time taken by a machine.

Let's find the required time and see if our assumption is right or not.

It takes 8/300 hours = 480/300 minutes to cap a bottle, manually.

Then it will take (480/300 - 2) minutes = (480 - 600)/300 minutes = - 120/300 minutes to cap a bottle, using a machine.

Thus it will take - 120/300 × 300 minutes = - 120 minutes = - 2 hours to cap 300 bottles.

Since time cannot be negative, then we can conclude that our assumption to determine time was wrong.

We understand that both the statements aren't sufficient to find the required time.