A boy goes to school at 12 km/Hr and return at a speed of 11 km/hr. If he takes 23 hrs in all. Find the distance from his village to school?
Let the distance from village to school be D km According to the question, ⇒ D/12 + D/11 = 23 ⇒ 23D/132 = 23 ⇒ D = 132 km
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