RRB Group-D Model Paper 17 with answers for online practice

One - day work of P = 1/6
One - day work of Q = 1/12
⇒ One - day work of both P and Q together = 1/6 + 1/12 = 3/12 = ¼
Total time taken by them = 4 days
⇒ Time taken to complete 25% work = (25/100) × (4) = 1 day