Question

Four pieces of ribbons measure 38 cm, 36 cm, 34 cm and 40 cm. Find the
average length of ribbon piece in the group of given ribbon pieces.​

Answer 1

Actual Length of ribbon = 3m = 300cm

Ribbon needed = 40×8 cm = 320 cm

therefore the ribbon is 320-300 cm short .

OR the ribbon is 20 cm short than needed

So,

3m = 3 * 100 = 300 cm

Number of pieces required = 8

Length of each piece = 40 cm

So,

Total length of ribbon required= 40 * 8 = 320 cm

Difference between lengths = 320 - 300

= 20 cm

Since,

Length required is 320 cm and available length is 300 cm,

Hence,

Ribbon is 20 cm shorter than required

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Answer 2

Answer:

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