Page 18 - Math Booklet Prep1first part1_Neat

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Example(2)

A pizza is divided between four friends in the ratio 1:3:5:7. If the
pizza weighs 1600 grams, how much pizza does each person get?

Solution:
•Total ratio = 1 + 3 + 5 + 7 = 16

Friend 1 = 1??1600 = 100 gram Friend 1 Friend 2 Friend 3 Friend 4 Sum
16

Friend 2 = 3??1600 = 300 gram 1 : 3 : 5 :7 16
16 ? : ? : ? :? 1600

Friend 3 = 5??1600 = 500 gram
16

Friend 4 = 7??1600 = 700 gram
16

Example(3)

A man died and left a capital of L.E. 48 000, to be divided among his

wife, 3 boys and 4 girls. The wife should take ? of the capital and

each boy should take twice as much as each girl. Calculate the share

of the wife and of each boy and girl.

The share of the wife = ? × 48 000 = L.E 6000

The rest = 48 000 – 6 000 =L.E 42 000

b : b : b : g : g : g : g : sum
2 : 2 : 2 : 1 : 1 : 1 : 1 : 10

2 42000
10
Boy = = x 42000 = 8400 Pounds

Girl = = 1 x 42000 = 4200 Pounds 18
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