Answer:
2. b) New amount = £6200
Same ratio → Jon : Bon = 3 : 7
6200 ÷ (3 + 7) = 620
⇒ 620 × 3 : 620 × 7
⇒ 1860 : 4340
Jon = £1860
Bon = £4340
3.
Tom : Thom : Thomas
= 2 : 3 : 5
= 2x: 3x : 5x
Given Tom received £2400:
⇒ 2x = 2400
⇒ x = 1200
2x: 3x : 5x
⇒ (2 × 1200) : (3 × 1200) : (5 × 1200)
⇒ 2400 : 3600 : 6000
Tom = £2400
Thom = £3600
Thomas = £6000
4.
cats : dogs
= 1 : 5
= 1x : 5x
Given there are 8 cats:
⇒ 1x = 8
⇒ x = 8
1x : 5x
⇒ (1 × 8) : (5 × 8)
⇒ 8 : 40
Therefore, there are 40 dogs
