The time spent on the internet by each of 120 adults is recorded for one day. The cumulative frequency diagram shows this information. $$\(70 \%\)$$ of the adults spent less than $$\(k\)$$ hours on the internet. Use the cumulative frequency diagram to find an estimate of the value of $$\(k\)$$. $$\[ k=\ldots \ldots \ldots \ldots \ldots \ldots \ldots \ldots \ldots \ldots \ldots \ldots . . . \ldots \ldots . . . \ldots . . . . . . . . . . . \]$$

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