Q81 / 160 · TS EAMCET 2019 (04 May Shift 2) · Mathematics

A boy rolled a die once. If an even number appear on then the number of chocolates the boy gets is equal to two more then the number appeared. If an odd number appear on that die. Then the number of chocolates he gets is equal to three more than the number appeared. If a random variable $X$ represents the number of chocolates the boy receive, then the range of $X$ is

  • Correct answer
    A
    $\{4,6,8\}$
  • B
    $\{3,5,7\}$
  • C
    $\{3,4,7\}$
  • D
    $\{2,3\}$

Solution

Number appeared on dice $2,4,6$ then by gets $(4,6,8)$ chocolate Number appeared on dice $1,3,5$ the boy also gets $(4,6,8)$ chocolates $\therefore$ Range of $X$ is $\{4,6,8\}$

Hence, the correct answer is option: 'A'.

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