Question

8. Rene is 6 years older than her younger sister. After 1 0 years, the sum of their ages will be 50 years. Find their present ages.
9. The length of a rectangle is 10 m more than its breadth. If the perimeter of rectangle is 80 m, find the dimensions of the rectangle.
10. A 300 m long wire is used to fence a rectangular plot whose length is twice its width. Find the length and breadth of the plot.
with statements

Answer 1

8. let the age of rene is x+6 and the age of her younger sister is x then after 10 years

x+10+x+6+10=50

2x+26=50

2x=24

x=24/2=12 so the age of younger sister is 12 years and the age of rene is 12+6=18 years

Answer 2

8th answer is this one