Phimo Primary 2

In the following arithmetic sequence below, what is the sum of A and B?

• 50

• 42

• 58

• 48

Answer explanation

21 – 13 = 8

8 ÷ 2 = 4. Hence, 4 is the common difference

A = 13 + 4 = 17

B = 29 + 4 = 33

17 + 33 = 50

What is the smallest number of squares into which the given 9 by 7 rectangle can bedivided?

• 5

• 6

• 7

• 10

Answer explanation

Which of the following has the smallest value?

• 0.1234

• 0.1325

• 0.1352

• 0.1243

Along one side of a square park are equally distanced lamp posts built from end to end.The distance between two adjacent lamp posts is 3 meters. If there are a total of 16 lampposts, what is the perimeter of the square park?

• 42 meters

• 48 meters

• 54 meters

• 60 meters

Answer explanation

16 lamps means that there are 4 3-meter distances in each side. So, 3 × 4 × 4 = 48 meters

Two trains leave City A and arrive at City B as shown in the timetable below. How many more minutes does it take Train YYY than Train XXX to go from City A to City B?

• 30 minutes

• 35 minutes

• 40 minutes

• 45 minutes

Answer explanation

XXX: 3:12 – 1:00 = 2 hours and 12 min

YYY: 4:00 – 1:13 = 2 hours and 47 min

47 – 12 = 35 min

The product of three different numbers is 48. If all three numbers are more than 1,which of the following could be the sum of these three numbers?

• 13

• 10

• 9

• 20

Answer explanation

3 × 2 × 8 = 48

3 + 2 + 8 = 13

What time will the clock show after 124 minutes?

Answer explanation

124 minutes = 2 hours and 4 minutes

8:21 + 2 hours and 4 minutes = 10:25

What is the probability of not spinning the letter “D” (purple) on the picker wheel below?

If 1 = 0, 5 = 7, 9 = 4 and 3 = 6, what is the value of 9 + 1 + 5 – 3 + 9?

Answer explanation

4 + 0 + 7 – 6 + 4 = 9

It takes 4 minutes to cut a log into 9 equal pieces. How many minutes would it take to cuta log into 25 pieces?

• 12

• 24

• 36

• 48

Answer explanation

9 pieces means 8 cuts.

4 ÷ 8 = 0.5 min per cut.

25 pieces means 24 cuts.

24 × 0.5 = 12 minutes