Sahil covers a distance of 100 km with variable speed . During 1st half his speed was 20km/h and during. second half it is 40 km/h . Calculate average speed.
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average speed= total distance/tolal time taken
= 100/(50/20+50/40)=100/(5/2+5/4)= 100/(15/4)=
(100×4)/15 = 26.66 km/hrs
= 100/(50/20+50/40)=100/(5/2+5/4)= 100/(15/4)=
(100×4)/15 = 26.66 km/hrs
hhhdhdbdj:
correct na?
yes correct . thanks bro
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