The height of the wall is 30 feet. A snail lift up 3 feet and slap down to two feet in one hour. In how many hours it will reach the upstairs
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hi
down = 2
up= 3
total ( resultant)= 1
in the first 27 hour it will cover 27 feet
and then in the 28th hour it will cover 3 feet I.e. 27+3
so the total time is 28hour
haribol1234p9zix3:
see the answer carefully
in the first 27 hour he will be 27 feet away from surface
and then in the 28 hour he will cover 3 feet first
so he is on the top
but he is slip 2ft each attemt
he will slip after he would climb 3 feets
even though if he flips after, he has reached the top
understood??
ok
ओक
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