The train shown has AC coaches and sleeper coaches. A longer train has coaches in the same ratio and has 9 sleeper coaches. How many AC coaches does it have?

Question

Accepted Answer

3. Count: 2 AC and 6 sleeper, so AC : sleeper = 2 : 6 = 1 : 3 . 9 sleeper = 3 × 3 , so AC = 1 × 3 = 3 . (5 adds 3 to the 2 AC coaches; 27 multiplies 9 by 3.)

The train shown has AC coaches and sleeper coaches. A longer train has coaches in the same ratio and has 9 sleeper coaches. How many AC coaches does it have?

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