Question

22/ Divide 21 pens between David and Sarah in the ratio 3:4.

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Answer 1

Answer:

OK

Step-by-step explanation:

4x+3x= 21

7x= 21

x=3

David- 4(3)= 12 pens

Sarah- 4(4) = 16 pens

Answer 2

Answer:

David gets 9, Sarah gets 12

Step-by-step explanation

Let David get 3x pens

Then Sarah has 4x pens

==> 21 = 3x + 4x

==> 21 = 7x

==> 21/7 = x

Therefore, x = 3

David has:-

3x pens = 3 * 3 = 9 pens

Sarah has:-

4x pens = 4 * 3 = 12 pens

(12 + 9 = 21)