Idont get this can someone plz explain it to me : '(

see below

Step-by-step explanation:

1)  2 1/2 + 3 = x,  x - 2 1/2 = 3, x - 3 = 2 1/2

2) 2  1/2 + 3 = x

   x = 5  1/2

distance covered by pamela in 9 l of fuel = 99km

let us apply unitary method here.

distance covered by pamela in 1 l of fuel =99/9 =11 km

now let us find distance covered by pamela if she has 12 l of fuel.

distance covered in 12 l = distance covered in 1 l of fuel * 12

we know that distance covered by here in 1 l is 11 km.

so distance covered in 12 l of fuel = 11*12 = 132 km.

1/3 + 1/3 ≠ 2/6 because 1/3 alone = 2/6  

step by step explanation:

1/3 + 1/3 = 2/3       2/3=4/6