Layla solves the question 10 x 20 x 40 by multiplying 10 and 20 first. Jimmy tells her that she should multiply 20 and 40 first. Which of them is right in their way of solving the question?

Layla

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Jimmy

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Both of them

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None of them

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Solution

The correct option is C
Both of them
Both Layla and Jimmy are right in their ways of solving. Multiplication can be performed in any order, so multiplying 10 and 20 first or 20 and 40 first will result in the same answer.

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Question 3(c)
Give first the step you will use to separate the variable and then solve the equation:
$\frac{20 p}{3} = 40$

2^{0} + 1^{0} - 4^{0} - 7^{0}

Question 2(h)
Give first the step you will use to separate the variable and then solve the equation:
20t = -10

\frac{- 15}{20}

\frac{- 5}{7}

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