The square is divided into 4 parts, N, P, Q and R. N and P form
12 of the square. The area of R is double of the area of Q, while the ratio of the area of P to the area of N is 1 : 4. What fraction of the square is the sum of the area of R and N? Leave your answer in the simplest form.
R |
Q |
P |
N |
Q + R |
P + N |
2x5 |
1x5 |
|
|
3x5 |
|
|
|
4x3 |
1x3 |
|
5x3 |
10 u |
5 u |
12 u |
3 u |
15 u |
15 u |
Since N and P form
12 of the square, the sum of the areas of N and P is the same as the sum of the areas of Q and R.
Sum of R and N
= 10 u + 3 u
= 13 u
Area of the square
= 10 u + 5 u + 12 u + 3 u
= 30 u
Fraction of the sum of the areas of R and N to the whole square =
1330 Answer(s):
1330