Level 2 PSLE Sue had a box of black beads and red beads in the ratio 13 : 7. She removed an equal number of black beads and red beads from the box. The ratio of the number of black beads and red beads left in the box became 3 : 1. What percentage of the beads were left in the box?
Level 2
Anna had $20 more than Betty at first. After Anna and Betty spent an equal amount of money, Betty had 35 as much as Anna. How much money did Anna have left?
Level 2
Carl bought some mangosteens and soursops in the ratio of 1 : 4 . After buying another 24 fruits each, the ratio becomes 5 : 12. Find the number of mangosteens and soursops he has now.