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ANTONII [103]
3 years ago
15

Seventy pupils (37 boys and 33 girls) are divided into two groups, with forty pupils in Group I and thirty pupils in Group II. H

ow many more boys are there in Group I than there are girls in Group II?
Mathematics
1 answer:
gizmo_the_mogwai [7]3 years ago
5 0

Answer:

7 more boys

Step-by-step explanation:

Given

Total = 70

Boys = 37

Girls = 33

Group\ 1 = 40

Group\ 2 = 30

Required

Number of more boys than girls in group 2

Represent the number of boys in group 1 with B and the number of girls with G.

So:

B + G = 40

Make G the subject

G = 40 - B

The number of girls in group 2 will be:

Total number of girls (33) - number of girls in group 1(40 - B)

So, we have:

Group\ B\ Girls = 33  -(40 - B)

Group\ B\ Girls = 33  -40 + B

Group\ B\ Girls = -7 + B

Group\ B\ Girls = B-7

<em>This means that there are 7 more boys than girls</em>

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