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By travelling at 40 kmph, a person reaches his destination on time. He covered two-third the total distance in one-third of the total time. What speed should he maintain for the remaining distance to reach his destination on time ?

A25 kmph

B30 kmph

C20 kmph

D40 kmph

Answer:

C. 20 kmph

Read Explanation:

വേഗം 40 kmph , സമയം x ആണെങ്കിൽ ആകെ ദൂരം 40x

40x ന്റെ 23\frac{2}{3} 80x3\frac{80x}{3} സഞ്ചരിക്കാൻ x3\frac{x}{3} സമയം എടുത്തു 

ബാക്കിയുള്ള ദൂരം 40x-80x3\frac{80x}{3}= 40x3\frac{40x}{3} സഞ്ചരിക്കാൻ എടുക്കുന്ന സമയം 2x3\frac{2x}{3} 

എങ്കിൽ ബാക്കിയുള്ള ദൂരം സഞ്ചരിക്കേണ്ട വേഗത = 40x32x3\frac{\frac{40x}{3}}{ \frac{2x}{3}} = 20 kmph 

 


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