There are 450 oranges and mangoes in a fruit stall. There are twice amount of mangoes as there are oranges.

a)how many oranges are there in the stall?

b)2/3 of the oranges are green and the others are ripe. How many oranges are ripe?

c)A box can hold 24 mangoes how many
boxes are needed to pack the mangoes?

3 answers

number of oranges ---- x
number of mangoes ---- 2x

solve for x:
x+2x = 450

now that you know the number of each, all will fall into place
112.5
13