Question

John, Mary, and Carol are putting a puzzle together. John has found 35 pieces and Mary has found 28. If there are 100 pieces in the puzzle, how many pieces are left for Carol to find?
37
63
65
72

Answer 1

37

Explanation:

Given parameters:

Number of puzzle pieces with John = 35

Number of pieces with Mary = 28

Number of pieces altogether = 100

Unknown:

Number of pieces with Carol = ?

Solution:

This is a simple arithmetic word problem.

The total number of puzzles when added all together should give us 100. If we add the pieces with John, Mary and Carol, we should generate the original number back.

Let the number of pieces with Carol = K

K + 35 + 28 = 100

 To find K, substract 35 and 28 from both sides:

  K + 35 + 28 -35 - 28 = 100 - 35 -28

 K = 37pieces

learn more:

Arithmetic sequence brainly.com/question/7221312

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