SSC JE Electrical Engineering 2011 Paper

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Question : 43 of 150

Marks: +1, -0

If ‘÷’ stands for ‘×’, ‘–’ for ‘+’, ‘+’ for ‘÷’, then whichof the following equations is correct ?

21 – 3 + 9 ÷ 12 = 51
21 + 3 ÷ 9 – 12 = 75
21 ÷ 9 + 3 – 12 = 51
21 – 3 ÷ 9 + 12 = 75

Solution:

(A)

21-↖{(+)} 3 ÷9 ×12 = 51

(B)

21 +↖{ (÷)}3\ ÷↖{(×)}\ 9-↖{(+)}12=75

(C)

21÷↖{(×)}\ 9+↖{ (÷)}3-↖{(+)} 12=51

(D)

21-↖{(+)} 3\ ÷↖{(×)}\ 9+↖{ (÷)}12=75

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