Question

3. Find x in the following proportions: (i) 40: x = 80:32 (ii) 4:10=3 ​

Answer 1

Answer:

16

Step-by-step explanation:

32 × 40 = x × 80

1280 = x × 80

x × 80 = 1280

x = 1280/80

x = 16

Answer 2

Answer:

(i)40:x=80:32

.40/x=80/32

. 80×=40x32 (cross multiplication

. x=40×32/80

. x=16

(ii) 4:10= x:70

. 4/20=x/70

. 4×70= 10x (cross multiplication)

. 4×70/ 10=x

. 28=x

Step-by-step explanation:

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