alleryഒരു ബൈക്ക് 40 km/h ഉം 60 km/h ഉം വേഗതയിൽ രണ്ട് തുല്യ വേഗതയിൽ സഞ്ചരിക്കുന്നു. രണ്ടിലും ശരാശരി വേഗത?
A50 km/h
B45 km/h
C48 km/h
D52 km/h
Answer & Solution
Correct answer: C. 48 km/h
തുല്യ ദൂരങ്ങൾക്ക് ശരാശരി 2ab/(a+b) = 2 x 40 x 60 / 100 = 48 കി.മീ/മണിക്കൂർ ആണ്.
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