Question

3) Find x in the following proportions:
(
i) 40 : x = 80:32
(ii) 4:10 = x : 70​

Answer 1

Answer:

i) 40:x = 80:32

• 40/x= 80/ 32
• 80x = 40× 32 (cross multiplication)
• x= 40×32/ 80
• x= 16

ii) 4:10 = x:70

• 4/10 = x/ 70
• 4× 70 = 10x (cross multiplication)
• 4×70/ 10= x
• 28= x

Step-by-step explanation:

HOPE THIS HELPS

Answer 2

Answer:

(I) 40 : x = 80 : 32

40/x = 80/32

x = 32·40/80

x = 16

(II) 4 : 10 = x : 70

4/10 = x/70

4·70/10 = x

28 = x