ibps-rrb-oa 2022 · Question 58 of 181

A is 40% more efficient than B. If B takes 6 days more than A to complete a work, then in how many days ‘A’ alone can complete the whole work?

Time and work

Aa) 10 days
Bb) 15 daysCorrect
Cc) 21 days
Dd) 24 days
Ee) 12 days

Answer: B. b) 15 days

Explanation

Ratio of efficiency of A to B = 7 : 5 So ratio of time required to complete the work = 5 : 7 Now ATQ, (7 – 5) → 6 days 2→6 6 5 → 2 × 5 = 15 𝑑𝑎𝑦𝑠 So, ‘A’ can complete the work alone in 15 days

Source: IBPS RRB Clerk Prelims 2022 Memory Based Paper (Adda247) · memory-based

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