Hey Kuro,

I believe your 2 Questions come from SHHK (Singapore Hokkien Huay Kuan ) 2012 Prelim paper 2. (Q9, Q16 respectively).

As for Q2, the worked solution was already provided and it can be found on pg 3 of this forum (as at Jul 21) (Subject: Hokkien Huay Kuan Prelims 2012 Q16, last posted Jun 26). Thank you.

For your Q1, the worked solution is as follows:

Q1.

SC : UC {Shaded Circle : Unshaded Circle}

1 : 3

Total (SC + UC) = 4 units = C

SQR : (R + C)

5 : 7

SSQR : USSQR {Shaded Square : Unshaded Square}

40 : 60

2 : 3

Total (SSQR + USSQR) = 5 units = SQR

SR : UR {Shaded Rectangle : Unshaded Rectangle}

1 : 2

Total (SR + UR) = 3 units = R

Since these 3 totals of C, SQR and R correspond to the respective units of the ratio, SQR : (R + C),

Shaded parts (S) : Unshaded parts (U)

SSQR : (UC + USSQR + UR)

2 : (3 + 3 + 2)

2 : 8

**1 : 4**

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Trust this helps.

Do let me know again if there's further clarification.

Cheers,

Edward