BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course

Redeem

Target Test Prep · GMAT

Choose how you want to prepare

Learn live with an expert or move at your own pace. Every option includes the complete TTP study system.

★★★★★5.0559 reviews
GMATLiveTeach 7 seats left
Chris Peckover
NEXT LIVE COHORT

Oct 13 to Jan 7, 2027

with Chris Peckover

Schedule
Tue, Thu · 8:00 to 10:00 PM ET
Included
40 live hours + 6 months of GMAT OnDemand
  • Live instruction and real-time questions
  • Class recordings and assigned practice
View class & enroll
Limited cohort · enrollment openTarget Test Prep
EALiveTeach 5 seats left
Logan Thompson
EXECUTIVE ASSESSMENT

Sep 6 to Dec 6, 2026

with Logan Thompson

Schedule
Sun · 9:30 AM to 12:30 PM ET
Included
Live EA class + 6 months of EA OnDemand
  • Expert-led weekly online sessions
  • EA Masterclass access between classes
View EA class & enroll
Limited cohort · enrollment openTarget Test Prep
GMATOnDemand Start anytime
SELF-PACED MASTERCLASS

Target Test Prep GMAT OnDemand

Complete access from day one. Study on your schedule.

130-point score guarantee
$0to start then $127/mo
  • Personalized study plan and analytics
  • Thousands of lessons and practice questions
Start free 5-day trial
Read 559 reviewsTarget Test Prep

Compare the format, schedule, and included access before enrolling. Prices and seat counts shown reflect the supplied offer details.

136 work and time

Expert replies
Post new topic Post Reply
Previous Topic Next Topic
Master | Next Rank: 500 Posts
Posts: 226
Joined: Sun Aug 09, 2009 4:34 am
by ern5231 » Tue Oct 06, 2009 3:26 pm
Two machines A and B. In one hour A makes 1000 products, B makes 700 products. Together they must take complete 12000 products in 8 hours. Suppose, B works 6.4 hours(with A then only A works). Then minimum how many hours does A work to finish the job?

I got the answer as 7.7. Just want to confirm. I don't have an OA for this
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Source: — Problem Solving |
Legendary Member
Posts: 727
Joined: Sun Jun 08, 2008 9:32 pmFollowed by: 1 member
Thanked: 8 times

Re: 136 work and time

by umaa » Tue Oct 06, 2009 6:53 pm
ern5231 wrote:Two machines A and B. In one hour A makes 1000 products, B makes 700 products. Together they must take complete 12000 products in 8 hours. Suppose, B works 6.4 hours(with A then only A works). Then minimum how many hours does A work to finish the job?

I got the answer as 7.7. Just want to confirm. I don't have an OA for this
I got 1 hours 7 mins. Where did you get the question?
What we think, we become
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Master | Next Rank: 500 Posts
Posts: 226
Joined: Sun Aug 09, 2009 4:34 am

by ern5231 » Tue Oct 06, 2009 10:37 pm
got this one from freshersworld.com
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Master | Next Rank: 500 Posts
Posts: 182
Joined: Sun Aug 02, 2009 7:19 pm
Thanked: 18 times
GMAT Score:680

by sanjana » Wed Oct 07, 2009 1:28 am
1hr 7 min is the correct answer.

Explanation :

A
Rate : 1000 prod/hr
B
Rate : 700 prod/hr

Combined rate : 1700 prod/hr

They work together for 6.4 Hrs
Therefore,number of products produced in 6.4 hrs is
1700*6.4 = 10880 prod

Now A has to work alone to produce 12000-10880 = 1120 prods

Therefore
Rate : 1000 prod/hr
Work : 1120 prod
Hence,time = 1120/1000 = 1.12 Hrs = 67min = 1hr 7 min.
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Post new topic Post Reply
• Page 1 of 1