Question

when 345 is added to a number, the number becomes 72 less than 4 times the number. find the number

Answer 1

Question:-

When 345 is added to a number, the number becomes 72 less than 4 times the number. find the number.

Answer:-

• The unknown number is 139.

Given:-

• x + 345 = 4x - 72.

To Find:-

• Find the unknown number.

Solution:-

➣ x + 345 = 4x - 72

➣ x + 345 + 72 = 4x

➣ x + 417 = 4x

➣ 417 = 4x - x

➣ 417 = 3x

➣ x = 417/3

➣ x = 139

Verification:-

➣ x + 345 = 4x - 72

➣ 139 + 345 = 4(139) - 72

➣ 484 = 555 - 72

➣ 484 = 484

∴ ✐ The unknown number is 139.