Discussion :: Testing allindiaexams
- Walking 7/6 of his usual rate, a boy reaches his school 4 min early. Find his usual time to reach the school?
Answer : Option D
Explanation :
Speed Ratio = 1:7/6 = 6:7
Time Ratio = 7:6
1 -------- 7
4 --------- ? ¨ 28 m
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