The square is divided into 4 parts, B, C, D and E. B and C form
12 of the square. The area of E is double of the area of D, while the ratio of the area of C to the area of B is 1 : 7. What fraction of the square is the sum of the area of C and D? Leave your answer in the simplest form.
E |
D |
C |
B |
D + E |
C + B |
2x8 |
1x8 |
|
|
3x8 |
|
|
|
7x3 |
1x3 |
|
8x3 |
16 u |
8 u |
21 u |
3 u |
24 u |
24 u |
Since B and C form
12 of the square, the sum of the areas of B and C is the same as the sum of the areas of D and E.
Sum of C and D
= 21 u + 8 u
= 29 u
Area of the square
= 16 u + 8 u + 21 u + 3 u
= 48 u
Fraction of the sum of the areas of C and D to the whole square =
2948 Answer(s):
2948