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primary 6 | Maths | Data Analysis
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Ivy
Ivy

primary 6 chevron_right Maths chevron_right Data analysis chevron_right Singapore

Pls help thank you

Date Posted: 4 years ago
Views: 275
J
J
4 years ago
not boys = girls + adults = 24
not girls = boys + adults = 20

From this you can see that there are 4 more girls than boys.

40 - 4 = 36

36 ÷ 2 = 18

There are 18 boys.

Since boys + adults = 20,

Adults = 20 - 18 = 2

total number of guests

= 40 children + 2 adults
= 42



Method 2 :


not boys = girls + adults = 24
not girls = boys + adults = 20

So boys + girls + 2 x adults = 24 + 20
= 44

since boys + girls = 40,

2 x adults = 44 - 40 = 4

Adults = 4 ÷ 2 = 2

Total guests = 2 adults + 40 children
= 42

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Pushpa Thekkedath
Pushpa Thekkedath's answer
19 answers (Tutor Details)
1st
2 units + Girls + Boys = 24 + 20
2 units + 40 = 44