Question

9. If 12, 21, 72, 126 are in
proportion, then
O 12 x 21 = 72 x 126;
O 12 x 72 =21 x 126;
O 12 x 126 = 21 x 72
O none of these​

Answer 1

Answer:

12x126 = 21x72

Step-by-step explanation:

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Answer 2

Answer:

12 x 126= 21 x 72

Step-by-step explanation:

Since, If four numbers m, n, o and p are in a proportion,

Then,

Here, m = 12, n = 21 o = 72 and p = 126,

By substituting the values,

We get, 12 x 126= 21 x 72