A watch which gains uniformly is 2 minutes slow at noon on Monday and is 4 minute 48 second fast at ...........

Quantitative Aptitiude (CLAT) Clock

A watch which gains uniformly is 2 minutes slow at noon on Monday and is 4 minute 48 second fast at 2 p.m. on the following Monday. When was it correct?

2 p.m. on Tuesday

2 p.m. on Wednesday

3 p.m. on Thursday

1 p.m. on Friday

Explanation:

Tym from monday noon to following monday=7days 2hrs.
=7×24+2=170hr.
total tym gained from mon noon to following mon =2min+4min48s
=6min48s=34/5min
=>watch gains 34/5min in 170hrs.
2mins are gainded in=170×5/34×2=50hr.
which means watch is crct after 2 days 2hrs
=2pm on wednesday.