Question

When a certain number is divided by 20, the result is same when number is decreased by 361. What is the number?

Answer 1

The number is 380

Explanation:

Let the number be 'x'

`\sf (x)/(20)=x-361\\\\\text{multiply the entire equation by 20}\\\\20*(x)/(20)=20*(x-361)`

x = 20x - 20*361

x = 20x - 7220

Now subtract '02x' from both sides

x - 20x = -7220

-19x =-7220

Divide both sides by (-19)

x = (-7220) ÷ (-19)

x = 380