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zoya khan

· started a discussion

· 1 Months ago

Why do you not make the paper accurate ly?. In question it was written 8/7 and in ans it is 5/7... What is this

Question:
A car travelling with \(\cfrac{5}{7}\) of its usual speed covers 42 km in 1 hr 40 min 48 sec. What is the usual speed of the car ?
Options:
A) 17\(\cfrac{6}{7}\) km/h 
B) 35 km/h 
C) 25 km/h
D) 30 km/h
Solution:
Ans: (b)


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