A & B share the cost in a ratio of 7:2. A pays £126, how much does B pay?
2 Answers
₤ 36
Explanation:
The sum of the 'parts' of the ratio = 7 + 2 = 9
Of which A pays 7 of the parts and B, 2 of the parts.
Since A pays 7 parts then 1 part = ₤126 ÷ 7 = £18
Hence 2parts
#=2xx£18=£36# Thus B pays £36
As a check : Total paid = £126 + £36 = £162
and £162 ÷ 9 = £18
B pays £36.00
Explanation:
Using ratio in the format of a fraction.
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Turning it upside down (makes it easier to determine B)
,........................................................
Multiply both sides by
,.............................................................
But
B pays £36.00