Question

Pls answer this question. I will give you the brainliest answer.

Q. (a) in a chocolate the ratio of the masses of cocoa:milk:other ingredient is 3:2:5.
1. What fraction of the chocolate is cocoa?
2.the mass of a chocolate is 28g. Calculate the mass of milk in a chocolate.

(b) the chocolates were sold in boxes. In 1996,each box cost $4.80. Fiona had $29 and bought as many boxes as possible.
1. How many boxes did she buy?
2.how much money did she have left?

(c) The price in 1998 was 10% more than the 1996 price of $4.80. Calculate the price in 1998.

(d) The price of $4.80 was an increase of 20% on the price of 1990. Calculate the price in 1990.

Answer 1

a)
1. Since ratio is 3:2:5
Total ratios = 3+2+5=10
Since cocoa is 3 parts hence ratio would be
3/10

2. Ratio is 3:2:5= 3+2+5=10
Mass of chocolate is 28 gm
Milk is 2 parts of 10 or 1 part of 5 =1/5*28=
5.6 gm

B)
1) sinnce each box costs 4.80 $
Then 4.80*6= 28.80 $ which is less than 29 $.
6 boxes

2) since she spend 28.80$ in boxes, she would have 29- 28.80 $=0.2 $ to spare.

C) 10% increase of 4.80$= 10/100*4.80+4.80=5.28 $

D) 20% increase of 4.80$= 20/100*4.80+4.80=5.76$