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Jane is four times as old as her sister. Five years ago, their ages were 60 years.
How old is Jane now?
2. Susan is twice as old as her cousin. In ten years, time the sum of their ages will be 80 years.
How old is his cousin?
3. I think of a number y. If I multiply it by 14, my answer will be the square of 28,
what is the number?
4. The sum of three consecutive numbers is 90.
Find the smallest number.
5. The angles of a triangle are 3y°, (2y+10°) and (y+ 20°).
6. John is 4 years older than his sister Joy. Joy is y years old now.
Write an expression to show the sum of their ages 6 years to come.
7. Two angles (y+85) ° and (4y-40) ° are supplementary.
Find y. y =
8. Musa, Tom and Sam scored goals for their team during a football match. Musa scored n goals while Sam scored twice as many goals as Musa. Tom scored two goals less than Sam.
What was their total score?
9. In a function, the number of women was twice that of men. The number of children was half the total number of men and women. The function was attended by 270 people.
How many children attended the function?
10. A rectangular container is 80 cm long, 50 cm wide and 40 cm high. The container is filled with water to a level 30 cm high. What is the volume of the empty space in the container?