~ CA Practice 2 ~

1) 5 children shared ${\displaystyle \frac{}{}}$4/5 of a pizza equally. What fraction of the pizza did each child receive?  *Very Common*  Ans: 4/25


2) Eric's current age is $$ 1/4 ​ of Roy's. In 24 years time, Roy's age will be 14 less than twice Eric's age. What is Roy's age now?
*Common* Ans: 20 years old now


  3) A basket contains mangoes, oranges and pears. ${\displaystyle \frac{}{}}$1/7 ​ of the fruits are mangoes. ${\displaystyle \frac{}{}}$1/3 ​ of the remaining fruits are oranges and the rest are pears. There are 24 fewer oranges than pears. How many mangoes are there in the basket? *Very Common* Ans: 12 mangoes


4) How many eights must be added to 2${\displaystyle \frac{}{}}$3/4 ​ to make 4${\displaystyle \frac{}{}}$1/2 ​?
*Very Common* Ans: 14 eights


5) Quan Hao baked some dark chocolate and white chocolate muffins for a charity event. ${\displaystyle \frac{}{}}$4/7 ​ of the muffins that he baked were dark chocolate. There were 108 white chocolate muffins. He sold ${\displaystyle \frac{}{}}$5/12 ​ of the muffins and gave the unsold muffins to his friends. How many muffins did he give to his friends?  *Very Common*
Ans: 147 muffins



6) Wen Xin had some money. She spent ${\displaystyle \frac{}{}}$2/5 ​ of her money on 1 dining table and 4 chairs. She then spent ${\displaystyle }$1/3 ​  of her remaining money on an oven. Each chair costs $140 less than the dining table. *Paper 2 type*

(a) If Wen Xin spent $195 on the over, how much did she spend on the dining table and 4 chairs? Ans: $390

(b) What is the cost of the dining table? Ans: $190



7) Mr Yeo had some red and green beads. ${\displaystyle \frac{}{}}$7/11 ​ of the beads were red and the rest were green. After giving away 105 red beads, the number of red beads left was half of the number of green beads. How many green beads did she have?  *Very Common*
Ans: 84 green beads



8) The figure WXYZ below shows a floor which is made up of a rectangle and a square. The area of the square is 64m².

(a) If the area of the rectangle is twice that of the square. Find the perimeter of the floor. Ans: 64m

(b) Given that it costs $26 to tile 1m², how much does it cost to tile the whole floor completely? Ans: $4992
*Common*

9) Kiat Liang and Christal have some money. If Kiat Liang gives Christal $20, they will have the same amount of  money. If Christal gives Kiat Liang $25, Kiat Liang will have twice as much money as Christal. How much money does Christal have?
*Challenging* Ans: $115

10) Ida took 30 minutes to wash the toilet while Safirah only took 15 minutes to wash it. How long would both of them take to wash the toilet together?  *Challenging Paper 1 type* Ans: 10min