Aptitude - Clock - Discussion

Please explain why should we take 2 mins?

Why 2 p.m. on Wednesday?

@Vinesh.

The Clock was 2 minute late on Monday noon. ok.
Again it found 4 min and 48 sec fast on next Monday 2 p.m.

Means clock was gaining continuously, from Monday noon to next Monday 2 p.m.
Hence total gain = 2 min +4 min and 48 sec.

How to covert 2 min + 4 min and 48 sec by using how to covert 34/5 or 44/5?

Please explain clearly.

2 min+4 min 48 sec = 34/5.
2+4(48/60) = 34/5.

How to covert 2min+4min 48 sec into 34/5. I am getting it as 26/5? Explain it clearly.

Please anybody explain me the gain and loose concept of the clock. I thought we should subtract 2 mins from 4 mins 4 sec. So we can calculate actual gain, so how we add both loss and gain of time >?

@ Rajesh.

Given that the said watch was 2 minutes low at Monday noon. Hence when it gained 2 minutes, The time was correct.

A watch which "gains" uniformly is 2 minutes low at noon.

Since, gain word is used hence we will add on all the gains (i.e 2+4 min 48 sec = which turns on to be 24/5 min).

Total gain=> 2+24/5 = 34/5 min.

Hence, 34/5 mins are gained in 170 hrs (7*24+2).

Then, 2 mins will be gained in x hrs.

We get x hrs = 50 hrs (from cross multiplying above two equations).

Now, 2 mins are gained in 50 hrs which can be written as 2*24+2 (i.e 2 days and 2 hrs).

After Monday if we calculate 2 days and 2 hrs we get Wednesday and 2 hrs which is the answer to the question.

Cheers!

Please anyone explain what is the meaning for this question?