A motorist travelled 122 km before his first stop. If he had 10% of his journey to complete at this point, how long was the total ride?

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1220 km

10 km

120 km

220 km

answer is A.

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Detailed Solution

Given, a motorist travelled 122 km before his first stop.
Let total distance travelled be x km.
As given in the question, 122 = 10% of x.
We know that a% of b =

\frac{a}{100} \times b

where a and b are real numbers.

\Rightarrow 122 = \frac{10}{100} \times x

\Rightarrow x = \frac{122 (100)}{10}

\Rightarrow x = 1220 km

The total distance to be traveled is 1220 km .
Hence, option 1 is correct.

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