Question : Directions: If 10 boys walk 10 km in 10 days, then how many days it will take for 3 boys to walk 10 km?
Option 1: 33.33
Option 2: 36
Option 3: 66.66
Option 4: 10
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Correct Answer: 33.33
Solution :
Given:
M1 = 10; W1 = 10; D1 =10
M2 = 3; W2 = 10; D2 = ?
Here, M→boys; W→work done; D→days
Therefore, (M1 × D1) ÷ W1 = (M2 × D2) ÷ W2
⇒ (10 × 10) ÷ 10 = (3 × D2) ÷ 10
⇒ 100 = 3 × D2
⇒ D2 = 100/3
⇒ D2 = 33.33 days
So, the number of days is 33.33. Hence, the first option is correct.
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