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Question
primary 5 | Maths
2 Answers Below
Anyone can contribute an answer, even non-tutors.
Plz help
Date Posted: 3 years ago
Views: 369
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Make all denominators the same.
2/7 of 1 is cookies.
1- 2/7= 5/7 (puffs)
3/4 of 2/7 were sold. (Cookies)
1/6 of 5/7 were sold. (Puffs)
Left were 64.
Find at first.
3/4 x 2/7 = 6/28 = 3/14 (cookies sold)
1/6 x 5/7 = 5/42 (puffs sold)
5/42 + 3/14 = 5/42 + 9/42 = 14/42 sold (1/3 of total)
If 64 = 2/3 (1 - 1/3 = 2/3)
64 divide 2 = 32 (1/3)
32 + 64 = 96
But this is just how I think. It might be wrong as I primary 5 too lolz.
2/7 of 1 is cookies.
1- 2/7= 5/7 (puffs)
3/4 of 2/7 were sold. (Cookies)
1/6 of 5/7 were sold. (Puffs)
Left were 64.
Find at first.
3/4 x 2/7 = 6/28 = 3/14 (cookies sold)
1/6 x 5/7 = 5/42 (puffs sold)
5/42 + 3/14 = 5/42 + 9/42 = 14/42 sold (1/3 of total)
If 64 = 2/3 (1 - 1/3 = 2/3)
64 divide 2 = 32 (1/3)
32 + 64 = 96
But this is just how I think. It might be wrong as I primary 5 too lolz.
But then 96 cannot divide by 7 so idk....
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