ꯃꯤꯑꯣꯏ ꯑꯃꯅꯥ ꯈꯣꯉꯆꯠ ꯑꯃꯒꯤ ꯁꯔꯨꯛ ꯑꯍꯨꯝ ꯊꯣꯀꯄꯒꯤ ꯑꯃꯗꯤ ꯄꯨꯡꯗꯥ $40$ ꯀꯤꯂꯣꯃꯤꯇꯔꯗꯥ ꯑꯃꯁꯨꯡ ꯑꯇꯣꯞꯄꯥ ꯁꯔꯨꯛ ꯑꯍꯨꯝ ꯊꯣꯀꯄꯒꯤ ꯑꯃꯗꯤ $60$ ꯀꯤꯂꯣꯃꯤꯇꯔꯗꯥ ꯆꯠꯂꯤ꯫ ꯈꯣꯉꯆꯠ ꯄꯨꯝꯅꯃꯛꯀꯤ ꯑꯣꯏꯅꯥ ꯃꯍꯥꯛꯀꯤ ꯆꯥꯡꯆꯠꯇꯥ ꯑꯣꯏꯕꯥ ꯈꯣꯡꯖꯦꯜ ꯑꯗꯨ ꯈꯉꯗꯣꯀꯎ꯫

ꯆꯞ ꯃꯥꯟꯅꯕꯥ ꯂꯝꯕꯤꯁꯤꯡꯒꯤ ꯑꯣꯏꯅꯗꯤ, ꯆꯥꯡꯆꯠꯇꯥ ꯈꯣꯡꯖꯦꯜ ꯑꯁꯤ ꯍꯥꯔꯃꯣꯅꯤꯛ ꯃꯤꯅꯅꯤ: $\dfrac{2xy}{x+y} = \dfrac{2 \times 40 \times 60}{100} = \dfrac{4800}{100} = 48$ km/hr. ꯑꯣꯄꯁꯟ C ($50$, ꯑꯦꯔꯤꯊꯃꯦꯇꯤꯛ ꯃꯤꯟ) ꯑꯁꯤ *ꯃꯇꯝ* ꯑꯁꯤ ꯆꯞ ꯃꯥꯟꯅꯅꯥ ꯈꯥꯌꯗꯣꯀꯄꯥ ꯃꯇꯃꯗꯥ ꯈꯛꯇꯗꯥ ꯆꯠꯅꯒꯅꯤ, ꯂꯥꯞꯅꯥ ꯂꯩꯕꯥ ꯅꯠꯇꯦ꯫