Which of the following numbers is in standard form?
(a) 32.63 × 104
(b) 326.3 × 103
(c) 3.263 × 105
(d) none of these
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Solution
(c) 3.263 x 105
A given number is said to be in standard form if it can be expressed as k x 10n, where k is a real number such that 1 ≤ k < 10 and n is a positive integer.
For example: 3.263 x 105