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1. Two whole numbers whose sum is 72 cannot be in the ratio :
- A. 5 : 7
- B. 5 : 7
- C. 5 : 7
- D. 5 : 7
Answer: Option C
Explanation:
A. 5 : 7
5x + 7x = 72
12x = 72
x = 6
B. 3 : 5
3x + 5x = 72
x = 9
C. 3 : 4
3x + 4x = 72
x = 72/7
D. 4:5
4x + 5x = 72
x = 8
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