Q:

A) 15 | B) 20 |

C) 10 | D) Data Insufficient |

Answer: C) 10

Explanation:

Explanation:

Total employees =

Hence number of educated employees = 30-20 = 10

Q:

Answer

Actual average salary of 12 officers = 400

Total salary of 12 officers = 400 x 12 = 4800

Average of these 12 officers as a whole =60

Total salary of 12 officers as a whole = 60 x 12 = 720

The total salary of rest = 4800 - 720 = 4080

Difference in average of the rest of officers = 60 - 56 = 4

Rest of the officers =

Total number of employees = 1020 + 12 = 1032

42
1215

18
746