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If P denotes ‘×’, Q denotes ‘÷’, R denotes ‘+’ and S denotes ‘−’, then what will come in place of ‘?’ in the following equation?
(40 Q 4 ) P 5 R (3 P 6) S (7 P 8) R 21 = ?

 

[SSC CHSL 26th May 2022 Shift-3 With Answers]
A
B
C
D

EXPLANATION

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