In each of the following questions, if the given interchanges are made in signs and numbers, which one of the four equations would be correct/true ?
Given interchanges : Signs `+ and -,` and numbers 4 and 8.

Options

A. `4 + 8 - 12 = 12 `
B. `4 - 8 + 12=0`
C. `8 + 4 - 12 = 24`
D. `8 - 4 + 12 = 8`

Answer

B

Explanation

Interchanging symbols `.+. and .-.` numbers 4 and 8 in option (b) statement, we have the new equation as :
` 8 + 4 - 12 =0`
`12 -12 =0`
`or, 0=0,` which is correct.