Question

three fourth of a number is 20 less than the original number.find the original no.​

Answer 1

Answer:

80

Step-by-step explanation:

Let the Number is X

given

X-3X/4 =20

=>X/4 =20

=>X =80

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Answer 2

Given : Three fourths of a number is 20 less than the original number

To Find : Original Number

Solution:

Let say Original Number = 4N

Three fourths of a number  = (3/4) 4N = 3N

20 less than the original number = 4N - 20

Equate both

3N = 4N - 20

=> N = 20

4N = 80

Original Number = 80

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