Simplification · Question 9 · Medium
If a/b = 4/5, find the value of (5a − 2b)/(5a + 2b).
- 1/3
- 2/3
- 3/7
- 1/2
Answer and explanation
Answer: A. 1/3
Explanation: Put a = 4 and b = 5: (20 − 10)/(20 + 10) = 10/30 = 1/3.
Previous: Find the value of 64^(2/3) × 81^(1/4) ÷ 32^(3/5). · Next: Find the value of (1 − 1/3)(1 − 1/4)(1 − 1/5) ... (1 − 1/50).
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