SA1 Practice 1 (Booklet A)

Qn 1 & Qn 2















(3)






(4)





















Qn 3 and 4
























































Qn 5 and 6




































































Qn 7 and 8





















































Qn 9















































Qn 10















































Qn 11


















































Qn 12


















































Qn 13 - The question is wrong. It should be "decrease" instead of increase.








Qn 14

(3)

Qn 15

Qn 16 and 17

Qn 18

Qn 19 and 20

Qn 21

Solution:

7u -> $ 70y

1 u -> $10y

12u -> $10y x 12 = $120y

Qn 22 and 23

Qn 24

Qn 25

Solution

Amt to be paid

At 2.45 pm -> $2

At 3.15 pm -> $2 + 1.50 =3.50

At 3.45 pm -> $3.50 + 1.50 = $5

At 4.15 pm -> $5.00 + 1.50 = $6.50

Time left carpark : 4.15 pm

Qn 26 and 27

Qn 28

Qn 29

Qn 30

Qn 31

Qn 32

Qn 33

Qn 34

Qn 35