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A school had three streams from standard 1 to standard 4 and two streams from standard 5 to standard 8. In a certain year, the average number of pupils per class was as follows:

Class: KCPE

Subject: Mathematics

Topic: Whole numbers operations

Lesson Summary

A school had three streams from standard 1 to standard 4 and two streams from standard 5 to standard 8. In a certain year, the average number of pupils per class was as follows:
Standard 1 to standard 4: 50
Standard 5 to standard 8: 40
Each pupil in the school was given 6 exercise books. The exercise books were delivered to the school in packets each containing a dozen exercise books. How many packets were delivered in the school?

A.46
B.440
C.480
D.460



Text Answer


Standard 1 to standard 4

Number of classes = 3 x 4 =12

Number of pupils per class= 50

Total number of pupils = 12 x 50 = 600

Standard 5 to standard 8

Number of classes = 2 x 4 = 8

Number of pupils per class = 40

Total number of pupils = 8 x 40 = 320

Number of pupils in the whole school = 600 + 320 = 920

Number of exercise books issued = 920 x 6 = 5 520

Number of packets delivered=552012=460

The correct answer is D (460).

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