How many digits are there in the repeating block of digits in the decimal expansion of $\frac{17}{7}$ ?
(a) 16
(b) 6
(c) 26
(d) 7

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Solution

$∵ \frac{17}{7} = 2 . \bar{428571}$

So, there are 6 digits in the repeating block of digits in the decimal expansion of $\frac{17}{7}$ .

Hence, the correct option is (b).

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How many digits are there in the repeating block of digits in the decimal expansion of 177? (a) 16 (b) 6 (c) 26 (d) 7

∵ 177=2.428571¯ So, there are 6 digits in the repeating block of digits in the decimal expansion of 177. Hence, the correct option is (b).

How many digits are there in the repeating block of digits in the decimal expansion of $\frac{17}{7}$ ?
(a) 16
(b) 6
(c) 26
(d) 7

$∵ \frac{17}{7} = 2 . \bar{428571}$

So, there are 6 digits in the repeating block of digits in the decimal expansion of $\frac{17}{7}$ .

Hence, the correct option is (b).