MA-138

Forming equations from word problems

Lower Sec Maths · Secondary 1 · Hard · Forming equations from word problems

A class has 40 students. Let

x

be the number of boys. Each boy pays 3 dollars and each girl pays 2 dollars for a class fund. If the total amount collected is 104 dollars, which equation in

x

represents this situation?

$3x + 2(40 - x) = 104$
$3x + 2x = 104$
$3(40 - x) + 2x = 104$
$x + (40 - x) = 104$

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