Question

If a:b = 2:3=b:c=3:4=c:d=16:15 find a:d
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Answer 1

Answer:

a/b=b/c=c/d

=2/3=3/4=16/15

=2×4/15

=8/15

Answer 2

Answer:

a:b = 2:3

b:c = 3:4

Here b is common, so a:c = 2:4

Now, to find a:d,

a:c = 2:4

c:d = 16:15

Multiply a:c *4

So,2*4=8, 4*4=16.

Hence a:c=8:16.

a:c =8:16

c:d=16:15

°

° ° a:d =8:15