TNPSC Group-I 2025 · Question 27 of 66

P and Q can do a piece of work in 20 days and 40 days respectively. They started the work together and Q left after some days of work and P finished the remaining work in 8 days. After how many days from the start did Q leave?

Aptitude - Time and Work

Answer: C. 8 days

Let Q work x days; P works (x+8) days. x/40 + (x+8)/20 = 1 gives 3x/40 = 0.6, so x = 8 days.

Source: TNPSC Group-I Prelims 2025 (held 15 June 2025) - official question paper via tnpscinfo.com (Impacteers TNPSC Coaching compilation)

Practice the full TNPSC Group-I 2025 paper

Timed test with all 66 questions, just like the real exam.

TNPSC Group-I 2025 · Question 27 of 66

Aptitude - Time and Work

Let Q work x days; P works (x+8) days. x/40 + (x+8)/20 = 1 gives 3x/40 = 0.6, so x = 8 days.

Source: TNPSC Group-I Prelims 2025 (held 15 June 2025) - official question paper via tnpscinfo.com (Impacteers TNPSC Coaching compilation)

Practice the full TNPSC Group-I 2025 paper

Timed test with all 66 questions, just like the real exam.