Question

If x% of 5000=40%of 2500,then X=​

Answer 1

Answer:

20% is given to be 80. Therefore, 100% = (100/20) x 80 = 5 x 80 = 400

Hence, x = 400

Solution 2: The Usual Algebraic Method

1 Per cent means a hundredth part or 1/100. ' Of ' means multiplication.

Therefore, 20% of x = 20. 1/100.x = x/5……………………….………..(1)

Given, 20% of x = 80…………………. ……………………..………………(2)

Equating (1) and (2),

x/5 = 80 Multiplying both sides by 5,

1.x = 5x80 This yields

x = 400