There are 4 red, 5 green, and 6 blue balls inside a box. If N number of balls…

GATE · 2023 · CE · Set 2 · General AptitudeGATE · 2023 · MN · General Aptitude

There are 4 red, 5 green, and 6 blue balls inside a box. If N number of balls are picked simultaneously, what is the smallest value of N that guarantees there will be at least two balls of the same colour?

One cannot see the colour of the balls until they are picked.

  1. A.

    4

  2. B.

    15

  3. C.

    5

  4. D.

    2

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