Question : Pratima and Diksha can complete typing work separately in 10 hours and 15 hours, respectively. After typing for 4 hours alone, Pratima leaves the work. In how many hours will Diksha complete the remaining typing work?
Option 1: 8
Option 2: 10
Option 3: 9
Option 4: 7
Latest: SSC CGL preparation tips to crack the exam
Don't Miss: SSC CGL complete guide
Correct Answer: 9
Solution :
Pratima can complete typing work separately in = 10 hours
Diksha can complete typing work separately in = 15 hours
Let total Work = LCM (10, 15) = 30 units
Efficiency of Pratima = $\frac{30}{10}$ = 3 units
Efficiency of Diksha = $\frac{30}{15}$ = 2 units
Pratima does work in 4 hours = 3$\times{4}$ = 12 units
Remaining work = 30 – 12 = 18 units
$\therefore$ Diksha does remaining work in = $\frac{18}{2}$ = 9 hours.
Hence, the correct answer is 9.
Related Questions
Know More about
Staff Selection Commission Combined Grad ...
Answer Key | Eligibility | Application | Selection Process | Preparation Tips | Result | Admit Card
Get Updates Brochure
Your Staff Selection Commission Combined Graduate Level Exam brochure has been successfully mailed to your registered email id “”.
Upcoming Exams
Trending Articles around SSC CGL
