Sarin’s family and The Great Singapore Sale Part 8 (Math Question)

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The blog postings are about the Singapore Math. The readers can learn from the postings about Solving Singapore Primary School Mathematics. The blog presents the Math Concept, the Math Questions with solutions that teaches in Singapore Primary Schools. You or the kids can acquire the skills to deal with the Math Modeling, the Math Problem Solving and the Problem Sum from Lower Primary School to Upper Primary School level after reading the blog postings. This posting is an upper primary school math question on Percentage.

Read the posting on Sarin’s family and The Great Singapore Sale in the Welcome category for the story.

You can read the posting on Sarin learns Average Number, Percentage and Charting in school (Math Concept) to understand about Percentage.

Challenge yourself with the question before look out for the given solution‼

Upper primary school mathematics question UPQ449

In the home appliance sale exhibition at Singapore Expo during the Great Singapore Sale, a fridge is selling at very good price as well as the buyer will get additional 3% cash off from the display price and the 7% GST is absorded buy the exhibitor. Sarin’s father is eyeing on a Panaso fridge that priced as \$1467 on display at the exhibition.

a) How much he needs to pay for the Panaso fridge after 3% cash off and 7% GST absorbed?

b) What is the total percentage of saving he got from buying the fridge at the exhibition?

Solution:

The price of the fridge at the sale = \$1467

3% cash off on the price = 1467 × 3% = \$44.01

The price of the fridge after further 3% cash off = 1467 – 44.01 = \$1422.99

The price is includsive of 7% GST

107% ==> 1422.99

1% ==> \$13.29897

100% ==> \$1329.90

The amount that Sarin’s father pay for the fridge = \$1329.90

The total amount he save = 2099 – 1329.90 = \$769.10

The total percentage of saving = 769.10/2099 × 100% = 36.64%

Note: You did not get extra 10% saving from the cash off and GST absorbed as it is based on the display price.