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प्रश्न
The smallest rational number by which \[\frac{1}{3}\] should be multiplied so that its decimal expansion terminates after one place of decimal, is
विकल्प
- \[\frac{3}{10}\]
- \[\frac{1}{10}\]
3
- \[\frac{3}{100}\]
उत्तर
For terminating the decimal expansion after one place of decimal, the highest power of m and n in `2^mxx5^n` should be 1.
Let m=n=1
We will get:
`1/3xx3/10=1/10`
`= 0.1`
Thus, it is evident that we multiplied it by `3/10`
Hence, the correct choice is (a).
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