If (-) stands for division, (+) stands for multiplication, `(-:)` stands for subtraction and `(xx)` stands for addition, which one of the following equation is correct?

Options

A. `100+5-10xx250-:200=100`
B. `200+10-20xx200-:100=150`
C. `50xx5-:10+100-75=50`
D. `300+5-20xx200-:100=200`

Answer

A

Explanation

Option (1)
`100+5-10xx250-:200=100`
`implies100xx5-:10+250-200=100`
`implies50+250-200=100`
Option (2)
`200+10-20xx200-:100=150`
`implies200xx10-:20+200-100=150`
`implies200xx10-:20+200-100=150`
`implies300-100ne150`
Option (3) `50xx5-:10+100-75=50`
`implies50+5-10xx100-:75=50`
`implies50+5-(10xx100)/(75)=50`
`implies50+5-(40)/(3)=50`
`implies(150+15-40)/(3)=50`
`implies165-40=50xx3`
`implies125ne150`
Option (4)
`300+5-20xx200-:100=200`
`implies300xx5-:20+200-100=200`
`implies75+200-100=200`
`implies275-100ne200`