alleryꯑꯣꯏꯒꯅꯤ꯫ A 180 m ꯇ꯭ꯔꯦꯟ ꯑꯁꯤ 20 m/sꯗꯥ 420 m ꯇꯅꯦꯜ ꯑꯃꯗꯥ ꯆꯪꯏ꯫ ꯃꯄꯨꯡ ꯐꯥꯅꯥ ꯀ꯭ꯂꯤꯌꯔ ꯇꯧꯕꯒꯤ ꯃꯇꯝ?
A24 s
B30 s
C21 s
D36 s
Answer & Solution
Correct answer: B. 30 s
ꯑꯣꯏꯒꯅꯤ꯫
ꯇ꯭ꯔꯦꯟ ꯑꯁꯤꯅꯥ ꯇꯅꯦꯜ ꯑꯁꯤ ꯁꯦꯡꯗꯣꯛꯅꯕꯥ 180 + 420 = 600 m ꯆꯠꯀꯗꯕꯅꯤ, ꯃꯁꯤꯅꯥ 600 ÷ 20 = 30 ꯁꯦꯀꯦꯟꯗ ꯂꯧꯒꯗꯕꯅꯤ꯫
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