Select the correct answerThe compound ratio of 2:3,9:4 and 2:5 isOptions3:53:25:35:41:7

To find the compound ratio of 2:3, 9:4 and 2:5, you need to multiply the corresponding terms of the ratios together.

Step 1: Multiply the first terms together: 2 * 9 * 2 = 36 Step 2: Multiply the second terms together: 3 * 4 * 5 = 60

So, the compound ratio of 2:3, 9:4 and 2:5 is 36:60.

However, this ratio can be simplified by dividing both terms by their greatest common divisor, which is 12.

Step 3: Simplify the ratio: 36/12 : 60/12 = 3:5

So, the correct answer is not listed in the options provided. The compound ratio of 2:3, 9:4 and 2:5 is 3:5.