Question

There are twenty people working in an office. The first group of five works between $8.00$ A.M. and $2.00$ P.M. The second group often works between $10.00$ A.M. and $4.00$ P.M. And the third group of five works between $12$ noon and $6.00$ P.M. There are three computers in the office which all the employees frequently use. During which of the following hours the computers are likely to be used most ?

• A. $10.00$ A.M. - $12$ noon
• B. $12$ noon - $2.00$ P.M.
• C. $1.00$ P.M. - $3.00$ P.M.
• D. $2.00$ P.M. - $4.00$ P.M.

Answer 1

The correct option is B $12$ noon - $2.00$ P.M.

Working time of 1st group is $8$ am to $2$ pm
Working time of 2nd group is $10$ am to $4$ pm
Working time of 3rd group is $12$ noon to $6$ pm.
$\because$ Each group remains in the office from period $12$ noon - $2$ pm.
$\therefore$ During $12$ noon - $2$ pm, computers are likely to be used most.

Hence, option B is correct.