Question

The given figures are all rectangles. What number will come in place of question mark?

Answer 1

May be we have to add it

Answer 2

Answer:

24cm²

Step-by-step explanation:

let length of yellow rectangle be x

let breadth of yellow rectangle be y

in red rectangle

breadth is 6cm

length is 12+8+y

area is 144cm²

6(20+y)=144

120+6y=144

6y=24

y=4cm

in green rectangle

breadth is 8cm

length is 4+x

area is 80

8(4+x)=80

32+8x=80

8x=80-32

x=48/8

x=6

in yellow rectangle

x=6cm

y=4cm

area=24cm²