choose the incorrect one

M4maths Previous Puzzles

18 Jan 2012 time

choose the incorrect one

OPtion

1) 7:15:12 AM
2) 7:16:04 AM
3) 7:16:56 AM
4) 7:17:48 AM
5) 7:18:40 AM
6) 7:19:32 AM
7) 7:20:24 AM
8) 7:21:18 AM
9) 7:22:08 AM
10) none of these

Solution

all the differences are 52 minutes except 8th.

Correct Option: 8 Best Solution (7)

Dr.Dipin Singh   12 years AGO

If the question is about the format of time , then none of these is incorrect one.

If question is about the incorrect time in the sequence of given timings, then 7:21:18 AM is incorrect time.
It should be 7:21:16 AM as
difference in two timings should be 52 secs as in all other cases.

so option 8.

Like? Yes (8) | No (3)  

A.P.Singh   12 years AGO

we are getting next time by adding 52 secs in all cases except 7:21:18 AM which is also affecting next term .

so 7:21:18 AM is incorrect time in this series of timings.

Like? Yes (3) | No   

krishna kumar gupta   12 years AGO

since in option 8 second time is not in a series of as given=(12+60),(4+60),56,48,40,32,24,16,8

Like? Yes (2) | No (2)  

Shiv Kumar   12 years AGO

The time difference between two options are 52 seconds.

Like? Yes (2) | No (2)  

Vignesh   12 years AGO

Except option 8, all are increaed by 52seconds.
N=(N + 0:00:54)sec, where N=7:15:12AM

Like? Yes (1) | No (2)  

Gunaseelan   12 years AGO

Each timing has the difference of 52 seconds except for 7:21:18AM

Like? Yes (1) | No (2)  

JITENDRA SINGH/j.d.   12 years AGO

there is a difference of 8 seconds between each two successive times but the difference between 7:20:24 and 7:21:18 is 6 seconds so the option 8(7:21:18) is incorrect.

Like? Yes (1) | No (2)