Question

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?

Answer 1

to use thoda jaldi chalna padega

Answer 2

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