Correct Answer - Option 4 : 1680
Given:
A number is decreased by 37.5%
Calculation:
37.5% = 37.5 / 100 = 3/8
We take original number = 8x, thus if decreased by 37.5%, number becomes 8x - 3x = 5x
Also, given new number = 1050
⇒ 5x = 1050
⇒ x = 210
Also, New number : original number = 5x : 8x
Thus, original number = 8x = 8 × 210 = 1680