Algebramedium · Past Paper
The ratio of two numbers is 3:4 and their sum is 70. Find the smaller number.
A30
B40
C35
D20
✓ Correct Answer: A — 30
3x + 4x = 70 -> 7x = 70 -> x = 10. Smaller number is 3(10) = 30.
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✓ Correct Answer: A — 30
3x + 4x = 70 -> 7x = 70 -> x = 10. Smaller number is 3(10) = 30.
Share this question