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UPTET Paper 1 2019 Solved Paper

Question : 114 of 150

Marks: +1, -0

Simplify {(9) - (-8) + (24 ÷ 13 - 7)}

Solution:

Concept:

Use the order of operations: brackets, division, addition and subtraction from left to right.

Explanation:

Start with the innermost bracket:

(9) - (-8)

becomes

9 + 8 = 17

Next, evaluate

(24 ÷ 13 - 7)

. Perform division first:

24 ÷ 13 = \frac{24}{13}

Then subtract 7:

\frac{24}{13} - 7 = \frac{24 - 91}{13} = \frac{-67}{13}

Now add the two parts:

17 + \frac{-67}{13} = \frac{221}{13} - \frac{67}{13} = \frac{154}{13}

Since

\frac{154}{13}

is not equal to 5, –8, or –5, the correct choice is "None of these".

Answer:

D. None of these

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