send mail to support@abhimanu.com mentioning your email id and mobileno registered with us! if details not recieved
Resend Opt after 60 Sec.
By Loging in you agree to Terms of Services and Privacy Policy
Claim your free MCQ
Please specify
Sorry for the inconvenience but we’re performing some maintenance at the moment. Website can be slow during this phase..
Please verify your mobile number
Login not allowed, Please logout from existing browser
Please update your name
Subscribe to Notifications
Stay updated with the latest Current affairs and other important updates regarding video Lectures, Test Schedules, live sessions etc..
Your Free user account at abhipedia has been created.
Remember, success is a journey, not a destination. Stay motivated and keep moving forward!
Refer & Earn
Enquire Now
My Abhipedia Earning
Kindly Login to view your earning
Support
Type your modal answer and submitt for approval
A can complete a certain work in 30 days. B is 25% more efficient than A and C is 20% moreefficient than B. They all worked
together for 3 days. B alone will complete the remaining work in:
18 days
12 days
20 days
15 days
- A completes work in 30 days, so A does 1/30 of the work per day.
- B is 25% more efficient than A, thus B does 1.25 * (1/30) = 1/24 of the work per day.
- C is 20% more efficient than B, so C does 1.2 * (1/24) = 1/20 of the work per day.
- Together, they do (1/30 + 1/24 + 1/20) = 1/8 of the work per day.
- In 3 days, they complete 3 * (1/8) = 3/8 of the work.
- Remaining work is 1 - 3/8 = 5/8.
- B alone completes 1/24 of the work per day.
- To finish 5/8 of the work, B takes (5/8) / (1/24) = 15 days.
- Therefore, the correct option is:
Option: 4 - 15 days
Report error
Access to prime resources