Question

2. From a piece of rope 20 m long, 100 pieces each of 7.5 cm long are
cut off; how much of the rope remains?​

Answer 1

Answer:

Length of remaining rope = 12.5 m

Step-by-step explanation:

• 100 pieces are cut off .

• Each piece have length 7.5 cm

∴ Total length cut off is,

100 × 7.5 = 750 cm = 7.5 m

∴ Length of the remaining rope is,

20 - 7.5 = 12.5 m

Length of remaining rope = 12.5 m

Answer 2

20 m - 100 * (7.5/100) m

= 20m - 7.5

= 12.5

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