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primary 5 | Maths
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Hi please help with this question. If you know how to do before process after method, please do so. Tysm if you help ! :)
Date Posted: 7 years ago
Views: 325
Mary had 70% left = 7 units
So, 100% is 10 units
Likewise, Jane had 80% left = 13 units
So, 100% is 13÷4×5 = 16.25 units
6.25 units is $125. Find 1 unit and then find 16.25 units (what Jane had at first)
So, 100% is 10 units
Likewise, Jane had 80% left = 13 units
So, 100% is 13÷4×5 = 16.25 units
6.25 units is $125. Find 1 unit and then find 16.25 units (what Jane had at first)
Why 13 divide by 4 times 5???
80% = 13
20% = 13÷4
100% = 13÷4×5
13÷80×100 works fine too
20% = 13÷4
100% = 13÷4×5
13÷80×100 works fine too
Why find 16.25 units
Because jane had 16.25 units at first.
Jane had 13 units which is the same as 80% of her money. If you calculate 100%, you will get 16.25 units.
Jane had 13 units which is the same as 80% of her money. If you calculate 100%, you will get 16.25 units.
What times what equals 16.25?!
13÷4×5
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