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3 friends spent a total of 400 many to buy teaching aids. The second spends 10 many more than the first, while the third 20 many more than the second. How much did each of them spend?

User Szevvy
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1 Answer

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Final answer:

Three friends spent $400 in total on teaching aids. By setting up an algebraic equation, we determine that the first person spent $120, the second spent $130, and the third spent $150.

Step-by-step explanation:

The question at hand is a simple algebraic problem. We have three friends who have spent a total of $400 on teaching aids. Let's denote the amount the first person spent as x many. According to the problem, the second person spends x + 10 many and the third person spends (x + 10) + 20 many, which is x + 30 many.

To find out how much each person spent, we set up the equation:

x + (x + 10) + (x + 30) = 400

Combining like terms:

3x + 40 = 400

Subtracting 40 from both sides:

3x = 360

Dividing by 3:

x = 120

Hence, the first person spent $120, the second spent $130 (120 + 10), and the third spent $150 (120 + 30).

User Himujjal
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