62/250=
A) 0.248
B) 0.252
C) 0.284
D) 0.312
E) 0.320

Question

Quizplus · Accepted Answer

Look at the denominator and think how to covert it in 1000 .If multiply both numerator and denominator by 4, you get 62 x 4/1000 = 248/1000 = 0.248
Key takeaway: One way may be to go for straight arithmetic calculation But the question may require long calculation It may waste time and also chances of committing error would be more . So always first look for a way to attack such problems other way such as multiplying or dividing both numerator and denominator by a common number.