Dear Diamond123, from the schools you have chosen, I assume you are staying in the west? Have you looked at Clementi Town? Anyway, whichever school you choose, please consider the distance from your house. From my sons' experience, you may need to stay quite late in school sometimes, and staying ne...

Dear parents, I need advice from all of you as my parents have no experience on choosing secondary school and they have not given me much advice. Until now I still have no idea of which school I should choose. I have a PSLE T-score of 243. My dream school is Nan Hua High School. However, I still ha...

In a basket, there are some oranges and apples. 2/7 of the apples is equal to 3/4 of the oranges. If there are 260 more apples than oranges, how many apples and oranges are there in the basket? TIA! This is a very common sum and it is not difficult. The trick is to make the 2 numerators the same. 2...

ozora wrote:Need some help on this catholic high prelim paper
Thanks

Note: Perimeter of shaded figure 1 = perimeter of shaded figure 2

72/4 = 18 cm

18 x 18 = 324 sq cm

324 - 180 = 144 sq cm

144/2 = 72 sq cm

The area of the isosceles triangle is 72 sq cm.

wi11anna wrote:Pls help me with this question. Thank you!

Shaded area is basically circle + 2 semicircles (= small circle) - parallelogram

3.14 x 6 x 6 =113.04

3.24 x 3 x 3 = 28.26

12 x 6 = 72

113.04 + 28.26 - 72 = 69.3

The area of the shaded parts is 69.3 sq cm.

Hi, Can someone please help ? Tks in adv ! http://i62.tinypic.com/2v11160.jpg 70/100 x 120 = 84 50/100 x 84 = 42 2 + 5 = 7 42/7 = 6 2 : 5 = 12 : 30 (to get total of 42) M N. O ---------- 120 100. 84 -12. - 30. - 42 ---------------- 108. 70. 42 108 - 70'= 38u --> $167.20 1u --> 167.20/38 = $4.40 42u...

Jerico wrote:Hi, Can someone please help ? Tks in adv !

30 x 30 = 900

1/2 x 8 x 8 = 32

4 x 32 = 128

8 x 8 = 64

900 - 128 + 64 = 708

708 x 12 = 8496

The volume of figure 1 is 8496 cu cm.

Jerico wrote:Hi, Can someone please help ? Tks in adv !

30 x 30 = 900

1/2 x 8 x 8 = 32

4 x 32 = 128

8 x 8 = 64

900 - 128 + 64 = 708

708 x 12 = 8496

The volume of figure 1 is 8496 cu cm.

Hi, Can someone please help ? Tks in adv ! http://i57.tinypic.com/2w3xms1.jpg X Y ---------------- 7u. 5u - 84.5. - 21.5 ---------------- 1p. 3p ---------------- 7u - 84.5 --> 1p 21u - 253.5 --> 3p 5u - 21.5 --> 3p 21u - 253.5 --> 5u -21.5 16u --> 253.5 - 21.5 1u --> 232/16 = 14.5 5u --> 14.5 x 5 =...

Sorry - Ender - still a little unclear. If the gap when the ball comes into contact is 7/2 - then should it not be 38-7. I can't understand why it's 38-7-7. Thanks Hi - would appreciate if some one could help me with this maths sum. http://i57.tinypic.com/e7b6t0.jpg The question is : Figure 1 is fo...