Math, asked by nbhargavteja2000, 5 months ago

a boy increases his speed to 9/5 times of his original spped. by this he reaches his school 30 minutes before the usual time. how much time does he takes usually?

A) 70.50 Min
B) 54 Min
C) 66.67 Min
D) 67.50 Min ​

Answers

Answered by maheshwaripooja951
7

Answer:

the answer is

B. 54 minutes

Step-by-step explanation:

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Answered by aruns1695
3

Answer:

67.50

Step-by-step explanation:

d=s×t

t=d/s

t=9/5×(t-30)

5t=9T-270

9t-5t=270

4t= 270

t= 270/4

t= 67.50 min

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