SSC CPO SI and ASI Model Paper 10

(4) Let the total work = LCM (15,25, 30) = 150 units
Work done by all the three personstogether in one day $=\frac{150}{15}+\frac{150}{25}+$
$\frac{150}{30}=10+6+5=21\mathit{u}\mathit{n}\mathit{i}\mathit{t}\mathit{s}$
Work done in 5 days = 21 × 5= 105 units
Remaining work = 150 – 105= 45 units
Time taken to complete the remainingwork $=\frac{45}{10}+5=3$ days
Therefore Pushkar has worked for 5+ 3 = 8 days
Work done by Pushkar in 8 days= 8 × 5 = 40 units
Share of Pushkar$=\frac{40}{150}\times 9600$$=\mathit{₹}2560$