8/15 / 1 1/3 * 3 ?/4 = 1.5
Correct answer: C. 3
- A. 1
- B. 2
- C. 3
- D. 5
Explanation
Interpret 1 1/3 as 4/3 and 3 ?/4 as 3 + ?/4. Then 8/15 ÷ 4/3 = 2/5, so (2/5)(3 + ?/4) = 1.5 = 3/2; hence 3 + ?/4 = 15/4 and ? = 3. The likely mistake is choosing b, 2, from mishandling the mixed number or division by 4/3.
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