NTSE Stage 2 MAT 2017 Question Paper

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Question : 18 of 100

Marks: +1, -0

With what operators, should the symbols @ and

<

be replaced so that the following expression is valid.

100 – 81 ÷ 27 @ 3 < 6 = 115

+ and –
× and ÷
+ and ×
÷ and –

Solution:

\LHS= 100 \; –\; 81 ÷27 \;@\; 3 < 6 = 115

⇒

100 \;– \;81 ÷ 27 \;@\; 3 × 6 ⇒100\; –\; 3 + 18

⇒

100 + 18\; – \;3 ⇒118 – 3 ⇒115 =\RHS

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