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Walking 7/6 of his usual rate, a boy reaches his school 4 min early. Find his usual time to reach the school?
- A25 min
- B26 min
- C27 min
- D28 min
Correct answer: D
Discussion 1
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0
CCommunity
28 min
Speed Ratio = 1:7/6 = 6:7
Time Ratio = 7:6
1 -------- 7
Speed Ratio = 1:7/6 = 6:7
Time Ratio = 7:6
1 -------- 7