Choose the answer for the following mathematical expression from the options given below.

$15 \times (12 + 8) \times 2 \times (9 + 1)$

12000

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6000

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4000

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1120

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Solution

The correct option is B 6000
According to PEMDAS, the order of operations to solve a mathematical expression:
P: Parentheses
E: Exponents
M: Multiplication
D: Division
A: Addition
S: Subtraction

Thus, the first step to solve the above expression would be to solve the expressions within the parentheses. It will be followed by multiplication.

$15 \times (12 + 8) \times 2 \times (9 + 1)$
$\Rightarrow 15 \times 20 \times 2 \times 10 = 6000$

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