14. Verify whether the four numbers are in proportion.
(i) 6, 15, 12 and 30
(ii) 5, 15, 20 and 50
(iii) 20, 25, 28 and 40
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the solution
Step-by-step explanation:
1 ) 6,15,12 & 30
= 6:15 , 12:30
= 2:5 , 4:10
= 2:5 , 2:5
= 2:5 = 2:5
Yes , they are in proportion.
2) 5,15,20 & 30
= 5:15 , 20:30
= 1:3 , 10:25
= 1:3 , 2:5
= 1:3 ≠ 2:5
No, they are not in proportion.
3) 20,25,28 & 40
= 20:25 , 28:40
= 4:5 , 7:10
= 4:5 ≠ 7:10
No, they are not in proportion.
☺️ Hope it helps.
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