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Lesson 1 of 7 · Simple / grouped bar

Ratio

DI: Bar Graphs · for IPMAT Indore, IPMAT Rohtak and JIPMAT

The exam method

  1. Back-solve given ratios. "December : April = 6 : 11" with December = 1800 gives April = 3300 in one step.
  2. Cancel early. reduce ratios (480 : 590 = 48 : 59) before multiplying.

Worked examples

Example 2Easy

Paid subscribers 1200, 1800, 3000, 4500, 6000; unpaid 2400, 1500, 2350, 4200, 2520. What is the ratio of the averages?

Picked from the Simple / grouped bar note for this micro-concept automatically. The whole note: Simple / grouped bar.