Grade 5 Age Problems: Ratios and Linear Equations Quiz

Sarah is 10 years old. Her brother is 4 years younger than her. How old is her brother?

• 8

• 5

• 7

• 6

Tom is twice as old as his sister Lily. If Lily is 8 years old, how old is Tom?

• 12

• 10

• 16

• 20

If Anna is 12 years old now, how old will she be in 5 years?

• 10

• 15

• 20

• 17

Mark is 3 years older than his friend Jake. If Jake is x years old, write an equation to express Mark's age.

• x + 3

• x + 2

• x + 5

• x - 3

Emily is 15 years old. Her mother is 4 times her age. How old is Emily's mother?

• 75

• 30

• 60

• 45

The sum of the ages of Mia and her father is 50. If Mia is 10 years old, how old is her father?

• 25

• 45

• 40

• 30

If the ratio of Sam's age to his sister's age is 3:2 and Sam is 12 years old, how old is his sister?

• 14 years old

• 8 years old

• 10 years old

• 6 years old

Liam is 5 years older than Noah. If the ratio of their ages is 5:4, how old is Liam?

• 22

• 25

• 20

• 30

Jessica is 14 years old. In how many years will she be twice as old as her brother, who is currently 7?

• 16

• 14

• 12

• 10

If the combined age of two friends is 30 years and one is 6 years older than the other, how old is each friend?

• Younger friend: 15 years old, Older friend: 21 years old

• Younger friend: 12 years old, Older friend: 18 years old

• Younger friend: 14 years old, Older friend: 22 years old

• Younger friend: 10 years old, Older friend: 20 years old