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Question

Match the following decimal forms to their correct pq form.

A
13
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B
4133
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C
29198
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Solution

Case 1:
Let us assume,
x=0.¯¯¯3........ (i)

10 x=3.¯¯¯3..... (ii)

(ii) - (i)
10 xx=3.¯¯¯30.¯¯¯3
9 x=3
x=39
x=13

Case 2:
Let us assume,
x=1.¯¯¯¯¯¯24........ (i)

100 x=124.¯¯¯¯¯¯24..... (ii)

(ii) - (i)
100 xx=124.¯¯¯¯¯¯241.¯¯¯¯¯¯24
99 x=123
x=12399
x=4133

Case 3:
Let us assume,
x=0.1¯¯¯¯¯¯46........ (i)

10 x=1.¯¯¯¯¯¯46..... (ii)
1000 x=146.¯¯¯¯¯¯46..... (ii)

(iii) - (ii)
1000 x10 x=146.¯¯¯¯¯¯461.¯¯¯¯¯¯46
990 x=145
x=145990
x=29198

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