A girl, walking at $\frac{5}{6}$ of her usual speed, misses the bus by 7 minutes. How long does she usually take to reach the bus stop?

24 minutes 35 minutes 30 minutes 60 minutes

35 minutes

Ratio of ,     Initial   New Speed           6     :    5 Time             5     :    6 According to question , ( 6 - 5 )R = 7 minutes 1R = 7 minutes Time taken with usual speed = 5 × 7 =  35 minutes