Q.1 ans: 32cm (c)
12 / 3 = 4
8 * 4 = 32
Q.2 ans: 63 (b)
8 * 13 = 104
104 /2 = 52
52 + 11 = 63
Q.3 ans: 165(e)
15 * 11 = 165
Q.4 ans: 7/30 (c)
4/7 * 35 = 20
3/7 * 35 = 15
3 * 20 = 60
6 * 15 = 90
= 35/ 60+90
= 35/150
= 7/30
Q.5 ans: $64 (b)
Adrian paid = 3u + 15
Bala paid = 8u + 3u - 15
= 5u -15
= $25
25 + 15 = 40
40 / 5 = 8
8 * 8 = 64
Q.1 ans: 3
3 6 9 12 15
Q.2 ans: 3.63
Q.3 ans: 1/15
Q.4 ans: 120034
Q.5 ans: 25000
Q.1 ans: 54
14 – 4 = 10
14 + 4 = 18
18 * 3 = 54
Q.2 ans: (a) ( 5 x – 4 )kg (b) 16kg
(a) P = 2 x kg
K = ( 2 x – 4 )kg
2 x kg + x kg + (2 x – 4)kg
= 3 x kg + 2 x kg – 4kg
= ( 5 x – 4 )kg
(b) ( 2 x – 4) kg
= ( 2 * 20) – 4
= ( 40 – 4 )kg
= 36kg
36kg – 20kg = 16kg
Q.3 ans: 1161
2/9 = 10/45
3/5 = 27/45
1 – 10/45 – 27 /45
= 8/45
27/45 – 8/45 = 19/45
19u = 817 apples
817 /19 = 43
43 * 27 = 1161
Q.4 ans: (a) 9.40 (b) 480m/min
Q.5 ans: (a) 328
(b) $492
