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Question

Study the following diagram and answer questions based on it. The colour preferences of children are given (White = rectangle, Black = circle, Brown = oval).

How many children like both brown and white but not black?

This question was previously asked in
RRB NTPC 2015 CBT 1 Question Paper PDF (2-Apr-2016) (Shift 3)
The correct answer is

None

The region 'brown and white but NOT black' is the intersection of the oval (Brown) and rectangle (White) that lies OUTSIDE the circle (Black).

From the diagram, this specific region contains no children.

So the count is None (0).

Hence, None.

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Important Questions from Mean Proportional

  1. Find the mean proportional between 19 and 76.
  2. Find the mean proportional of 324 and 16.
  3. Find the mean proportional between 28 and 252.
  4. Find the mean proportional of 400 and 4.
  5. Find the mean proportional of 225 and 4.
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