 ## Question

primary 5 | Maths | Fractions

Anyone can contribute an answer, even non-tutors.

##### Tsl

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Date Posted: 1 year ago
Views: 83
Eric Nicholas K
1 year ago
2/5 of her money on 12 identical pencils

2 units --> 12 pencils
1 unit --> 12/2 = 6 pencils ("/" is a symbol for divide, and in fact, fraction signifies division!)
5 units --> 6 x 5 = 30 pencils

So Raihan has just enough money to buy 30 of such pencils.

15 of such pencils would have cost Raihan 15/30 = 1/2 (divide both numerator and denominator by the common term 15) of her money.

Since half of her money was spent on the pencil, the amount of money spent on the pens was half (1 - 1/2 = 1/2).
Eric Nicholas K
1 year ago

2 units --> 50 coins
1 unit --> 50/2 = 25 coins
3 units --> 25 x 3 = 75 coins

So Claire had 75 twenty-cent coins.

Total value of Claire's coins
= 75 x 20
= 1500 cents
= \$15

Tsl
1 year ago
Thank you very much to help solve my problem.

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Date Posted: 1 year ago
Tsl
1 year ago
Thank you very much for helping solve my problem 