Question

Please help with number 13 !​

Answer 1

Here , we are given with a square which has 100 small squares in it , now we have to use two colours to represent 0.3 × 0.9 on it . So , now let's proceed :-

`{:\implies \quad \sf (3)/(10)* (9)/(10)}`

`{:\implies \quad \sf (27)/(100)}`

Now , here , we have to colour 27 boxes with a colour and the left (100-27) = 73 boxes with another colour . Colour can be any of your choice

Refer to the attachment for better understanding too :D

Answer 2

Look at Attached image.

Explanation:

Shade 3/10 in the column then 9/10 in the row.

The answer is how much is cross shaded with both colors.