A ladder has 10 steps.A labourer named Lallu Prasad has to carry some weight to the top of a house, by using a ladder.He climbs the ladder 2 steps up in 1 second and 1 step down in the next second by dancing on his favourite Bhojpuri tunes until he reaches the top of the stairs.In how many seconds would he reach the top?
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1
Answer:
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Answer:
20 seconds
Step-by-step explanation:
net step speed =2-1/2=0.5steps/sec
total time =10÷0.5=20 sec
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