CLEAR
Toprankers-Info

+91 7676564400

Mobile App

Get it on Google Play
Discussions
Select Date
Tags:

Articles

Discussions
Submit Discussion
ASHISH

· started a discussion

· 1 Months ago

wrong answer (Question: 209599.0 )

correct answer is 7 days
oneday/unit
A----10 A=6
B-----12 LCM=60 B=5
C-----15 C =4
Let whole work complete in 'd' days
60=6(d-5)+5(d-3)+4d
60=15d-45
105/15
d=7 Ans.

Question:
A, B and C complete a work in 10, 12 and 15 days respectively. They started the work together. But A leaves the work before 5 days of its completion. B also leaves the work 2 days after A leaves. In how many days will the work completed ? 
Options:
A) 4 days
B) 6\(\cfrac{2}{3}\) days
C) 7 days
D) 8 days
Solution:
Ans: (c)


C is work alone for 3 days = 4 × 3 = 12

Remaining work = 60 - 12 = 48

B + C is work for 2 days = 9 × 2 = 18

Remaining work = 48 - 18 = 30

A + B + C are finished the remaining work for = 30/15 = 2 days

Total days = 3 + 2 + 2 = 7 days

Knowledge Expert

· commented

· 1 Months ago

Dear Student,

Given answer is correct, read the solution carefully and try again.

Keep learning with us!!
Regards,
Team Toprankers

crkx

· commented

· 1 Months ago

B leaves 2 days after A leaves, that is total 3 days, so B left 2 days before completion of work.
So it will be 60=6(d-5)+5(d-2)+4d
-logo
We at aim to provide most comprehensive content & test for practice which is carefully divided into various chapters and topics to help you focus on your weak areas.Our Practice mock test gives you unmatched analytics to help you realize your strong areas,time management and improvement areas.Our Short & Crisp notes on each topic will help you to quickly revise the topic along with the tips & tricks of the exams.
More About
-Info
-Info

Mobile App

Get it on Google Play
About Us Campus Ambassador Careers Contact Us Refund Policy

All Rights Reserved Top Rankers

User Policy
Disclaimer
Terms & Conditions