alleryꯑꯣꯏꯒꯅꯤ꯫ ꯒꯥꯔꯤ ꯑꯃꯅꯥ 2 hꯗꯥ 120 km ꯆꯠꯀꯗꯕꯅꯤ꯫ 40 kmꯒꯤ ꯃꯇꯨꯡꯗꯥ 40 km/hꯗꯥ, ꯃꯊꯧ ꯇꯥꯕꯥ ꯈꯣꯡꯖꯦꯜ?
A100 km/h
B80 km/h
C60 km/h
D90 km/h
Answer & Solution
Correct answer: B. 80 km/h
ꯑꯣꯏꯒꯅꯤ꯫
ꯑꯍꯥꯅꯕꯥ 40 km ꯑꯁꯤ ꯄꯨꯡ 1 ꯆꯪꯏ, 80 km ꯑꯁꯤ 1 ꯄꯨꯡꯗꯥ 80 km/hꯗꯥ ꯆꯠꯅꯕꯥ ꯊꯃꯗꯨꯅꯥ ꯂꯩ꯫
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Related questions
Motion: combine the cluesMotion: choose the resultA boat’s still-water speed is 12 km/h. It covers 30 km downstream and 18 km upstream in 4 A 120 m train at 54 km/h overtakes a 180 m train moving the same way in 60 s. Slower trainTwo runners start together on a 400 m circular track at 5 and 3 m/s in the same direction.In a 200 m race A beats B by 20 m. A runs at 10 m/s. What is B’s speed?A boat moves at 12 km/h in still water; the stream is 3 km/h. Time for 27 km downstream anTrains 180 m and 220 m long move oppositely at 54 and 36 km/h. Time to cross completely?