(A) 2.5 min
(B) 3 min
(C) 3.2 min
(D) 3.5 min
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(A) 2.5 min
(B) 3 min
(C) 3.2 min
(D) 3.5 min
Answer: Option (B) 3 min
Explanation:
Total distance covered
= ( 7/2) + (1/4) ( miles
= 15/4 miles.
Therefore Time taken
= 15/(4×75) ( hrs
= 1/20 hrs
= ( 1/20) x 60 ( min.
= 3 min.