Level 2 PSLE A box contained black balls and green balls. 40% of the balls were green. After some red balls were added to the box, 28% of the balls were green. What percentage of the balls in the box were red?
Level 1 PSLE
Norman has a rope which is 60 cm long. He cuts it into three pieces. The lengths of the three pieces of rope are as shown. Find the value of k.
Level 1 PSLE
Norman has a rope which is 60 cm long. He cuts it into three pieces. The lengths of the three pieces of rope are as shown. Find the value of k.