A) \[17\frac{6}{7}\,\,km/hr\]
B) \[35\,\,km/hr\]
C) \[25\,\,km/hr\]
D) \[30\,\,km/hr\]
Correct Answer: B
Solution :
Usual speed of the car\[=\frac{42}{\frac{42}{25}}\times \frac{7}{5}\] \[=\frac{42\times 7\times 25}{42\times 5}=35\,\,km/hr\]You need to login to perform this action.
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