 
<translate> Aikin da P ya yi a rana guda = 1/24 Aikin da Q ya yi a rana guda = 1/9 Aikin da R ya yi a rana 1 = 1/12 Aikin da Q da R suka yi a rana guda = 1/9 + 1/12 = 7/36 Aikin da Q da R suka yi a cikin kwanaki 3 = 3 × 7/36 = 7/12 Sauran aikin = 1 <unk> 7/12 = 5/12 Yawan kwanakin da P zai iya gama sauran aikin = (5/12) / (1/24) = 10 Saboda haka, amsar ita ce (B). <eng> Work done by P in 1 day = 1/24
Work done by Q in 1 day = 1/9
Work done by R in 1 day = 1/12
Work done by Q and R in 1 day = 1/9 + 1/12 = 7/36
Work done by Q and R in 3 days = 3×7/36 = 7/12
Remaining work = 1 – 7/12 = 5/12
Number of days in which P can finish the remaining work = (5/12) / (1/24) = 10
Therefore, the answer is (B). 