The mean length of the rope in 60 coils is 15m. A new coil is added in which the length of the rope is 20 cm what is the mean length of the rope
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Answer:
14.78m
Step-by-step explanation:
Total Length of rope = 60 * 15 = 900m
No of coils = 60.
New coil added with length = 20cm,
New length of rope = 900 +0,20 = 900.20 m.
Number of coils = 61
Mean length of rope becomes = 900.20/61 = 14.78m
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