40 is subtracted from 60% of a number, the result is 50. Find the number?

A 150

B 140

C 130

D 110

Solution

Correct Answer: Option A

মনে করি, সংখ্যাটি  x
প্রশ্নমতে, x এর 60% - 40 =50
 or, x × (60/100) =50+40
 or,x × 3/5=90
  ∴  x=150

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