Question

A boy has a cardboard of length 20/9 m and breadth 3/5 metre. He wants to make 6

pieces from the cardboard by cutting and pasting. Find the area of 4 such pieces.​

Answer 1

Answer:

The area of the 3 pieces is \frac{15}{14}

14

15

Step-by-step explanation:

Given : A boy has a cardboard of length 10/7 m and breadth 5/4 m. He wants to take 5 pieces from the cardboard by cutting and pasting.

To find : The area of 3 such pieces?

Solution :

Length = \frac{10}{7}

7

10

Breadth = \frac{5}{4}

4

5

The area of the cardboard is

A=l\times bA=l×b

A=\frac{10}{7}\times \frac{5}{4}A=

7

10

×

4

5

A=\frac{25}{14}m^2A=

14

25

m

2

We want it divide into 5 pieces and then we want 3 of those pieces.

So we want \frac{3}{5}

5

3

of the total area.

The area of the 3 pieces is

A=\frac{25}{14}\times\frac{3}{5}A=

14

25

×

5

3

A=\frac{15}{14}A=

14

15

Therefore, The area of the 3 pieces is \frac{15}{14}

14

15

Answer 2

Answer:

20/9×3/5=5/3

5/3×4/6=10/9