# Time and Work

Time and Work: Time and Work Problems, Time and Work Formula, Time and Work Questions with Tricks for answering them

1 Tips

# TIPS on cracking Aptitude Questions on Time and Work

Looking for Questions instead of tips? - You can directly jump to  Aptitude Test Questions on Time and Work

## Assume that the productivity of each worker is constant

1.    Question: A alone can do a piece of work in 6 days and B alone in 8 days. A and B undertook to do it for Rs.3200. With the help of C, they completed the work in 3 days. How much is to be paid to C?

Solution:

Let the total amount of work to be done be W units.

Productivity of A, Pa = W/6 units per day.

Productivity of B, Pb = W/8 units per day.

3 days x [Pa + Pb + Pc] = W => Pc = W/24 units per day

Ratio of wages of A: B: C = Ratios of their productivities = (W/6): (W/8): (W/24) = 4: 3: 1.

Amount to be paid to C = Rs.3200 x (1/8) = Rs.400

Are you engaged in a Job Search? - You can get your Resume/ CV reviewed for free and then apply for jobs/ internships.

2.    Question: It takes 6 hours for pump A, used alone, to fill a tank of water. Pump B used alone takes 8 hours to fill the same tank. We want to use three pumps: A, B and another pump C to fill the tank in 2 hours. What should be the rate of pump C? How long would it take pump C, used alone, to fill the tank?

Solution:

Let the total capacity of the tank be C liters.

Fill rate of pump A, Fa = C/6 liters per hr

Fill rate of pump B, Fb = C/8 liters per hr

2 hrs x [Fa + Fb + Fc] = C => Fc = 5C/24 liters per hr

Let‘t’ be the time taken by only pump C to fill the tank.

‘t’ hrs x 5C/24 = C => t = 24/5 = 4.8 hrs

Are you interested in getting Certificates to boost your Resume? Participate in our Online Grammar and Aptitude Contests. It only takes 20 mins. All participants get Participation Certificates while the top 100 winners get Amazon Cash Vouchers every week. Participate NOW!

Become a Campus Ambassador for LearningPundits - Promote our Weekly Online Contests to other students in your Campus via Posters, Facebook, WhatsApp, Email and face to face communication. You will receive a stipend based on your performance and an Internship Certificate to boost your Resume. Email your Resume to support@learningpundits.com

# Time and Work

Time and Work: Time and Work Problems, Time and Work Formula, Time and Work Questions with Tricks for answering them

{{sectionContentCount}} {{contentCountNoun}}

{{trustHtmlContent(content.content)}}