Question
A person covered 80 km at a speed of 'z' km/h and then
another 100 km at a speed of (3z/2) km/h. If the total time taken for the journey was 320 minutes, find the value of 'z'.Solution
ATQ,
So, z = (440 Ă— 3) Ă· (3 Ă— 16) = 27.5 km/h
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(B) Literate section of village...
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The branch of biology which deals with the study of heredity and variation is known as
Scientific name of soybean is:Â
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