JustDoingMath's answer to Bernice's Primary 6 Maths Measurement Singapore question.
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6 x 8 = 48 pokémon stickers needed for 8 bookmarks
4 x 5 = 20 hello kitty stickers needed for 5 cards
Since Jenny can only buy 5 pokémon stickers and 4 hello kitty stickers at a time ,
48 ÷ 5 = 9.6 ( need to buy 9.6 packs for 48 pokémon stickers )
However , you cannot buy 9.6 packs since the question only allow you to buy 5 at a time , so need to round up 9.6 to 10 , so that you can have 48 pokémon stickers.
10 x $1.35 = $13.50 ( for 48 pokémon stickers )
20 ÷ 4 = 5 ( need to buy 5 packs for 20 stickers )
5 packs is enough for 20 stickers , so no need to round up since you have exactly 20 stickers
5 x $2.20 = $11 ( for 20 hello kitty stickers )
Least amount needed for 48 pokémon and 20 hello kitty stickers
= $13.50 + $11
= $24.50
4 x 5 = 20 hello kitty stickers needed for 5 cards
Since Jenny can only buy 5 pokémon stickers and 4 hello kitty stickers at a time ,
48 ÷ 5 = 9.6 ( need to buy 9.6 packs for 48 pokémon stickers )
However , you cannot buy 9.6 packs since the question only allow you to buy 5 at a time , so need to round up 9.6 to 10 , so that you can have 48 pokémon stickers.
10 x $1.35 = $13.50 ( for 48 pokémon stickers )
20 ÷ 4 = 5 ( need to buy 5 packs for 20 stickers )
5 packs is enough for 20 stickers , so no need to round up since you have exactly 20 stickers
5 x $2.20 = $11 ( for 20 hello kitty stickers )
Least amount needed for 48 pokémon and 20 hello kitty stickers
= $13.50 + $11
= $24.50
Date Posted:
1 year ago
This is a more detailed explanation on how the other person got the answer , don’t hesitate to ask if there’s any questions , I’ll be happy to answer them
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