Question

What number needs to be added to 7 and 9 so that the ratio of the first number to the second becomes 4 : 5?If
p
:
q
=
2
3
:
3
and
p
:
r
=
3
4
:
1
2
, calculate the ratio
p
:
q
:
r
Giving your answer in its simplest form.

Answer 1

Answer:

7:9+1:1 = 8:10=4:5

Step-by-step explanation:

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