Respuesta :
1) 1800 * 3/4 = 1800 : 4 * 3 = 1350 - are 25 - 59
2) 1800 * 1/5 = 1800 : 5 = 360 - are over 60
3) 1800 - 1350 - 360 = 90 - are under 25.
2) 1800 * 1/5 = 1800 : 5 = 360 - are over 60
3) 1800 - 1350 - 360 = 90 - are under 25.
Answer:
90 members were below 25 years of age.
Step-by-step explanation:
Total number of members in gym = 1800.
1). Members aged 25 - 59 were [tex]\frac{3}{4}of (1800)[/tex]
SO number of members of age 25-59 = [tex]\frac{3}{4}(1800)[/tex]
= 3×450 = 1350
2). Members over 60 years of age = [tex]\frac{1}{5}of (1800)[/tex]
so number of members over 60 = [tex]\frac{1800}{5}=360[/tex]
3). Rest are below 25 of age.
Number of members below 25 of age = 1800 - [(members between 25-59) + (members above 60)]
= 1800 - [1350 + 360]
= 1800 - 1710 = 90
Therefore members under 25 ware 90.
