A baker baked three types of cakes weighing 58/3kg altogether. If he bakes 73/9kg of fruit cake and 19/6kg of chocolate cake and the remaining sponge cake. What was the quantity of sponge cake?
Answers
Answer:
There are 28 students in a room. The ratio of boys to girls cannot be which of the above.
Possible Answers:
2 : 3
1 : 1
3 : 4
1 : 3
Correct answer:
2 : 3
Explanation:
When selecting ratios for two variables (boys and girls) the two sides of the ratio must add up to be a factor of the total student count. The factors of 28 include 14, 7, 4, and 2. (1 + 1 = 2), (2 + 3 = 5), (3 + 4 = 7), and (1 + 3 = 4). 5 is the only nonfactor and cannot be the ratio of boys to girls, thus making 2 : 3 the correct answer.
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Find A Ratio : Example Question #2
For All Sweets Bakery, the daily sales ratio of bread to cakes is 5:2. If the bakery sells 12 more loaves of bread on Tuesday than its daily sale of 40 loaves, how many cakes were sold on Tuesday? (round to the nearest integer)
Possible Answers:
5
21
20
4
Correct answer:
21
Explanation:
Since 40 loaves of bread are sold daily, and the ratio of bread to cakes is 5:2, then \dpi{100} (40\div 5)\cdot 2=16 cakes are sold daily.
Using the ratio in the same way, we can find the additional amount of cakes sold:
\dpi{100} (12\div 5)\cdot 2=4.8\approx 5 cakes with approximation.
Thus, the total amount of cakes sold on Tuesday is 16+5=21 cakes.
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