Question

the number of children at the library was 3 times the number of adults. the total number of people at the library was 48. how many children were at the library.​

Answer 1

Answer:

16

Step-by-step explanation:

No. of total strength of library=48

No. of total strength of students=3 times the no of adult

Therefore

Total strength=48

Total strength=3 times the no of adult

3÷48=16

No. of adults=16

Answer 2

Answer:

there are 12 adults and children  36 children

Step-by-step explanation:

let adults be= a and let children be =c

c=3a

a+ c=48

substitute c with 3a

a+3a=48

4a=48

a=12 therefore 12adults

substitute in the original equation

12 + c = 48

c =36   (Prove 3x12=36)