Sangeetha travels 14km to her home partly by rickshaw and partly by bus . She takes half an hour if she travels 2 km by rickshaw,and the remaining distance by bus . On the other hand,if she travels 4 km by rickshaw and the remaining distance by the bus she takes 9 min longer . Find the speed of rickshaw and of the bus ..
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Step-by-step explanation:
2/x2/y=1/2eqn 1
4/x10/y=39/60 eqn2
SO 2y+12x= xy/2 from 1
and 4y+10y=13xy/20 from 2
solving we get 14x=7/20xy
y=40and x=10 from the above.
this will be shorter method.
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