Question

Determine if the following ratios are in proportion.
(a) 48 kg : 6 kg and 25 g : 200 g
(b) 8 m: 21 m and 24: 63
(c) 45 girls : 60 girls and 48 boys : 64 boys
(d) 5.21: 3.9 I and 3 ml : 4 ml​

Answer 1

Step-by-step explanation:

1. 8:1,1:8
2. 8:21,8:21
3. 3:4,3:4

Answer 2

Answer:

(a) No

(b) Yes

(c) Yes

(d)

Step-by-step explanation:

(a) proportion = 48 x 200 = 6 x 25

                       = 9600 = 150

No, 48 kg : 6 kg : 25 kg : 200 kg are not in proportion.

(b) proportion = 8 x 63 = 21 x 24

                       = 504 = 504

Yes, 8 m : 21 m : 24 m : 63 m is in proportion.

(c) proportion = 45 x 64 = 60 x 48

                      = 2880 = 2880

Yes, 45 girls : 60 girls : 48 boys : 64 boys is in proportion.

(d) proportion = 5.21 x 0.004 = 3.9 x 0.003

                       = 0.002084 = 0.00117

No, 5.21 L : 3.9 L : 3 ml : 4 ml are not in proportion.