Level 2
The number of apples is 23 the number of kiwis. The number of mangoes is four times that of apples. What is the ratio of the number of kiwis to the total number of fruits?
Level 2
In a box, 40% of the pens are red pens and the rest are blue and black pens. The number of black pens is twice the number of blue pens. What percentage of the pens in the box are blue pens?