Exercise No. 3C

NOTE: Answers to all questions are given at the end of this exercise.

Question No. 1:

Evaluate the following expressing your answers in the simplest form:

(a) 3 1/2 x 4 4/5 x 5/14

(b) 5 1/4 ÷ 2 4/5 ÷ 1 7/9

(c) 3 1/9 x 3 3/5 ÷ 2 1/10

 

Question No. 2:

A school has 6 3/4 kg of detergent in stock. During the “Use Your Hands” campaign, each class will be given 3/8 kg of detergent. There are 28 classes in the school.

(a) What fraction of the school will be supplied with the detergent in stock?

(b) How much detergent will be required altogether for the whole school?

(c) How much more detergent does the school need to order?

(d) If the school gives out the detergent in stock to the 15 lower secondary classes first,

  1. How much detergent will be given out;
  2. How much detergent in stock will be left?

 

Question No. 3:

  1. Last year Peter spent a total of 8 1/6 hours on community service. Visits to old folks’ homes made up 4/7 of the total visiting old folks’ homes?
  2. This year Peter plans to spend 1 1/5 of his time soent last year on community service.
  3. Find the time he will spent on community service.
  4. How much more time will he spend this tear than last year?

 

Question No. 4:

Five boys Alan, Ben, Chris, Den and English share a sum of money

Alan takes 1/5 of the sum of money.

After Alan has taken his share, Ben takes 1/3 of the remaining money.

After Ben has taken his share, Chris takes 1/4 of the remaining money.

After Chris has taken his share, Den takes 1/7 of the remaining money.

After Den has taken his share, English takes all the remaining money.


Answers

(from left to right)

3c-i 3c-ii 3c-iii 3c-iv 3c-v

10 Comments
  • Syra
    July 15, 2016

    where are the answers?

    • Arooj Shahzad
      August 30, 2016

      thank you syra for visiting the website. I hope it will help you.
      answers are given at the end of each exercise’s questions in the form of images.

    • Jace
      April 12, 2017

      Thank you, great article. I am definitely going to use the inrtomafion.

  • hARIS
    September 6, 2016

    where are the answers ?/

    • Arooj Shahzad
      September 17, 2016

      thank you haris for visiting our website. i hope it will help you. it’s under developement. we are working on providing you with your needed content. it will be uploaded soon. keep visiting.
      learnologic is always for you.

    • Quiana
      April 12, 2017

      That insight solves the prmelbo. Thanks!

  • sonali
    September 17, 2016

    i cannot find the answers neither the images.

    • Arooj Shahzad
      September 17, 2016

      thanks for visiting our website. it’s under developement. we are working on providing you with your needed content. it will be uploaded soon. keep visiting.
      learnologic is always for you.

    • Evaline
      April 12, 2017

      Geealnrly I do not read post on blogs, but I would like to say that this write-up very forced me to try and do it! Your writing style has been amazed me. Thanks, quite nice post.

  • ayesha
    May 1, 2017

    thank u so much for the solutions

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