40
The answer is: 20/2 plus 30 = 40
Twenty times one and one half is equal to 30.
half of 20 is 10 and a third of 30 is 10
40
30 divided by 1/2 is 60.
50
Half is the same thing as .5 so you divide 30 by .5 and you get 60 then you add 10 so it is 70. TADA!!!
40
12
40
30/0.5=60 60+10=70
40