If C alone can complete two-third part of a work in 12 days, then in how many days C can complete the whole work?

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If C alone can complete two-third part of a work in 12 days, then in how many days C can complete the whole work?

A24 days

B15 days

C8 days

D18 days

Answer:

D. 18 days

Read Explanation:

Solution: Given: C alone can complete two-third part of a work in 12 days Concept: If a person can complete (x/y) part of a work in z days, then the person can complete the whole work in {z × (y/x)} days Calculation: 2/3 part → 12 days ⇒ 1 part → 12 × (3/2) = 18 days ∴ C can complete the whole work in 18 days

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