Question

if 15 tins of the same size contain 234 kg of oil, how much oil will there be in 10 such tins

Answer 1

15 tins ======= 234 kg
10 tins ======== x kg

Using proportionality method,
15:234 :: 10:x

PRODUCT OF EXTREMES = PRODUCT OF MEANS

234 × 10 = 15 × x
x = 234 × 10 / 15
x = 156


ANSWER = 156 kg


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Answer 2

15 Tins contain 234 Kg oil
so, 1 Tin contains 234/15 kg oil
So, 10 Tins contain 10 × 234/15 Kg oil .
Hence, 10 Tins contain 156 Kg Oil