ayushi 12km /GHANTA KI CHAL SE APNI BICYCLE DWARA APNE GHAR SE SHALA 20MINIT ME PAHUCHTI HAI YADI WAH 15 MINIT me PAHUCHna chahe to use kis CHAL SE chalna padega?
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to use thoda jaldi chalna padega
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first we change20min. in hour 1/3
distance = speed × time
distance =12×1/3 = 4km
15min. = 1/4 hour
speed = 4/1/4
=16km per hour
distance = speed × time
distance =12×1/3 = 4km
15min. = 1/4 hour
speed = 4/1/4
=16km per hour
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