Kerala LDC · Simple Arithmetic and Mental Ability
Work efficiency and combined work problems.
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Q1 · Time and Work · EASY
A can complete a work in 12 days and B can complete the same work in 18 days. If both work together, in how many days will they complete the work?
Q2 · Time and Work · EASY
15 men can complete a work in 20 days. How many men are required to complete the same work in 12 days?
Q3 · Time and Work · MEDIUM
A can do a piece of work in 10 days, B in 15 days and C in 20 days. They start working together but A leaves after 2 days and B leaves 3 days before the work is completed. In how many days is the work completed?
Q4 · Time and Work · MEDIUM
A and B together can complete a work in 8 days. B and C together can complete it in 12 days, and A and C together can complete it in 16 days. In how many days can A alone complete the work?
Q5 · Time and Work · HARD
12 men and 16 boys can complete a work in 5 days. 13 men and 24 boys can complete the same work in 4 days. In how many days will 7 men and 10 boys complete the work?