Cloth Roll to be Cut

You have a roll of cloth 1km long. You have a machine which cuts this roll into pieces of 10-meter-long cloth.

How long would it take for the machine to cut the roll if each cut took 4 secs?




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John's five friends Rachel, Jacob, Phoebe, Joey and Chandler live on the same road.

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Mathematically
B*C*D = 1260
B + C + D = 2E
2A = E

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Word ladder puzzle

The word ladder puzzle was invented by Lewis Carroll, author of Alice’s Adventures in Wonderland.