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प्रश्न
The number \[\ce{0.\overset{\bullet}{4}}\] in `p/q` form is ______.
विकल्प
`4/9`
`40/9`
`3.6/9`
`36/9`
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उत्तर
The number \[\ce{0.\overset{\bullet}{4}}\] in `p/q` form is `underline(bb(4/9))`.
Explanation:
Let x = \[\ce{0.\overset{\bullet}{4}}\] ...(i)
Multiplying both sides by 10, we get
10x = \[\ce{4.\overset{\bullet}{4}}\] ....(ii)
Subtracting (i) from (ii), we get
9x = 4
`=> x = 4/9`
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