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Mathematical operation and symbol notation

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Situation Reaction Test
  1. If P denotes '÷', Q denotes 'x', R denotes '+' and S denotes '-', then
    18 Q 1 2 P 4 R 5 S 6
    1. 53
    2. 59
    3. 63
    4. 65
Correct Option: A

Using the correct symbols, we have
18 Q 1 2 P 4 R 5 S 6
= 18 x 12 ÷ 4 + 5 - 6
= 18 x 3 + 5 - 6
= 54 + 5 - 6 = 59 - 6 = 53


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