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Ronit is twice as efficient as Ajay and can finish the work in 42 less days than Ajay. In how many days Ajay can finish the work?1. 422. 213. 844. 1045. 90 |
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Answer» Correct Answer - Option 3 : 84 Given: Ronit is twice as efficient as Ajay. He can finish work in 42 less days than Ajay. Formula used: Total work done = Efficiency × Total number of days Concept used: The ratio of efficiency of Ronit and Ajay = 2 : 1 The ratio of time of Ronit and Ajay = 1 : 2 Let the time taken by Ronit and Ajay be 1x and 2x respectively. 2x - x = 42 ⇒ x = 42 Time taken by Ajay = 2x ⇒ 2 × 42 ⇒ 84 days ∴ Ajay can finish the work in 84 days. |
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