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7. Very(iv) a=75, b = 27(0 a = 37, b = 2(it) =121, b = 148. A ladder has 10 steps. A labourerclimbs the ladder 2 steps up in one secosecond by dancing on a famouthe top?A labourer has to carry some weight to the top. Hein one second and 1 step down in the nexttune. In how many seconds would he reachHOTS- -- |
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Answer» Labour goes in 1 sec = 2 stepsthen,he get down in next 2 sec = 1 step .so, finally he goes up in 1 step in = 3sec .hence , he goes 10 steps in =3×10 = 30 sec . |
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