Question

A number decrease by 40% gives 135 what is the number​

Answer 1

Answer:

Let the no. be x,

Then,

=> x- 40x/100= 135

=> x - 2x/5 = 135

=>x/1 - 2x/5 = 135

Now LCM of 1 & 5 = 5

=> 5x-2x/5 = 135

=> 3x/5 = 135

=> x = 135 x 5/3

=> x = 45 x 5

=> x = 225

Hence, required no. = x = 225

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