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Question

Jon has 50 triangular hangers in his cupboard. He wants to cover all the edges of the hanger with a decorative tape. One roll of ribbon is of length 250 cm. Each hanger has two sides measuring 40 cm and one side measuring 75 cm.

The number of Tape rolls required are :


A
21
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B
50
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C
31
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D
40
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Solution

The correct option is C 31

Tape required for one Hanger = Perimeter of one Hanger

=(40+40+75) cm

=155 cm

Tape used for 50 Hangers = Perimeter of 1 Triangle × Number of hangers

=155×50=7750 cm

Length of ribbon of one tap =250 cm

Number of taps required=Total length of ribbons requireLength of ribbon in one tap

Number of taps required=7750250=31

Therefore, Number of taps required =31, (c) is the correct option.


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