Answer:
20
Explanation:
Three numbers are in the ratio of 5:6:7. Find the smallest nuber if the sum is 72.
- sum the ratios
- divide 72 by 18 (sum of ratio)
- multiply by 5 (smallest ratio)
4 × 5 = 20 (smallest number)
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check
4 × 6 = 24 (number with ratio 6)
4 × 7 = 28 (biggest number)
sum
20 + 24 + 28 = 72
The answer is good