alleryꯕꯥꯏꯛ ꯑꯃꯅꯥ ꯄꯨꯡꯗꯥ 40 ꯀꯤꯂꯣꯃꯤꯇꯔ ꯑꯃꯁꯨꯡ 60 ꯀꯤꯂꯣꯃꯤꯇꯔꯗꯥ ꯆꯞ ꯃꯥꯟꯅꯕꯥ ꯁ꯭ꯠꯔꯦꯠ ꯑꯅꯤ ꯀꯚꯔ ꯇꯧꯏ꯫ ꯑꯅꯤꯃꯛꯀꯤ ꯃꯊꯛꯇꯥ ꯃꯁꯤꯒꯤ ꯆꯥꯡꯆꯠꯇꯥ ꯑꯣꯏꯕꯥ ꯈꯣꯡꯖꯦꯜ?
A50 km/h
B45 km/h
C48 km/h
D52 km/h
Answer & Solution
Correct answer: C. 48 km/h
ꯆꯞ ꯃꯥꯟꯅꯕꯥ ꯂꯝꯕꯤꯁꯤꯡꯒꯤ ꯑꯣꯏꯅꯥ ꯆꯥꯡꯆꯠꯇꯥ 2ab/(a+b) = 2 x 40 x 60 / 100 = 48 km/h ꯑꯣꯏ꯫
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