In each equation decide which one of the following five equations under each would be correct by interchanging the signs and number as given.
`-, + and xx , 35 and 66`

Options

A. `(66xx 33) - 35 = 103`
B. `(35 div 11) + 12 = 36`
C. `(66 xx 15) + 10 = 500`
D. `(70 div 66) + 15 =-30`

Answer

D

Explanation

Interchanging symbols `.xx. and .+.,` numbers .35. and .66. in option (e) statement, we have the new equation as :
`(109 + 35) div 66 =2 (2)/(11)`
Using BODMAS RULE, we get
`144 div 66 = 2 (2)/(11)`
or, `(24)/(11) = 2 (2)/(11),` whichis correct.