If a number x is 10% less than another number y and y is 10% more than 125, then x is equal to :
A
140.55
B
123.75
C
143
D
150
Correct Answer: 123.75
Hints: y is 10% more than 125 So, y = 125 + 10% of 125 = 125 + 10/100 × 125 = 125 + 12.5 = 137.5 x is 10% less than y x = 137.5 - 10% of 137.5 = 137.5 - ( 10/100 × 137.5) = 137.5 - 13.75 = 123.75 x = 123.75