A girl reduced his speed to 4/7th and reaches her destination in 14 hours . If she had walked at her initial speed then how much time had she saved ?
Answer & explanation
Correct answer: option 2
Ratio old : new
Speed 7 : 4
Time 4 : 7
According to question , 7R = 14 hours
1R = 2 hours
time saved if she walked by his usual speed is ,
3R = 6 hours