MCQ
Number of whole numbers between $38$ and $68$ is:
  • A
    $31$
  • B
    $30$
  • $29$
  • D
    $28$

Answer

Correct option: C.
$29$

\Whole numbers between $38$ and $68$ are $39, 40, 41,42, 43, 44, 45, 46, 47, 48, 49, 50, 51,52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66$ and $67.$
Total whole numbers between $38$ and $68 = 29$
Alternate Method
Let $a = 38$ and $b = 68$
Then, number of whole numbers between $a$ and $b = b - a -1 [$when $b > a]$
Number of whole numbers between $38$ and $68 = 68 - 38 - 1 = 29$

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