Question

1. Which of the following are in proportion?
(a) 16, 4, 32, 8
(c) 16, 30, 24, 45
(b) 18, 10, 9,5
(d) 3, 4, 2, 6

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Answer 1

Answer:

option A is correct

Step-by-step explanation:

As per given:

16,4,32,8..that means

16:4::32:8

4×4= 16 (4:16)

8×4= 32 (8:32)

mark me as the brainliest....peace :)

Answer 2

Step-by-step explanation:

Use this formula

if a:b::c:d

then it will satisfy

a×d=b×c

1)

16, 4, 32, 8

16×8=128

4×32=128

Hence in proportion

Similarly

2)

16, 30, 24, 45

16×45 = 720

30×24=720

Hence in proportion

3)

18, 10, 9,5

18×5=90

10×9=90

Hence in proportion

4)

3, 4, 2, 6

3×6=18

4×2=8

Here not in proportion....