Question 1

1. Given that the prime factorisation of 9261 is $3^3 $  x $7^3$, find the CUBE ROOT of 9261.

Accepted Answer

21

Answer

14

Answer

28

Answer

3X7

Question 2

2.  Estimate $\sqrt{80}$

Accepted Answer

9

Answer

$3^2$

Answer

8

Question 3

3. Given that 504 = $2^3  	imes 3^2	imes 7$ and 588 = $2^2 	imes 3 	imes 7^2$, what's the HCF?

Accepted Answer

84

Answer

1008

Answer

168

Answer

28

Question 4

4. Find the LCM of 24 and 90

Accepted Answer

360

Answer

240

Answer

720

Answer

180

Question 5

5. Two race cars, X and Y, are at the starting line.  Car X and Car Y makes one lap every 60s and every 80s respectively. When will they both be back at the starting point again?

Accepted Answer

240s

Answer

20s

Answer

180s

Answer

480s

Question 6

5b. Two race cars, X and Y, are at the starting line.  Car X and Car Y makes one lap every 60s and every 80s respectively.   How long, in minutes, will it take Car X to be 5 laps ahead of Car Y?

Accepted Answer

1200s

Answer

20 mins

Answer

10 mins

Answer

600 s

Question 7

6. Shirley needs to pack 108 roses, 81 lilies and 54 sunflowers into identical baskets so that each type of flower is equally distributed. Find the largest number of baskets that can be packed.

Accepted Answer

27

Answer

12

Answer

18

Answer

4

Question 8

7. Nora and Mirah work in different companies. Nora has a day off every 18 days, while Mirah has a day off every 24 days. How often will they have the same day off?

Accepted Answer

72

Answer

48

Answer

6

Answer

54

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