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27 Sep 2017, 14:24
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Let D be a recurring decimal of the form D = 0.a1a2a1a2... where digits a1 and a2 lie between 0 and 9. which of the following necessarily produces an integer when multiplied by D.
A. 18
B. 108
C. 198
D. 208
E. 219
OA: C
A. 18
B. 108
C. 198
D. 208
E. 219
OA: C
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27 Sep 2017, 14:26
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converting recurring decimal to fraction will give the denominator as 99.
so ans is 198 = C
so ans is 198 = C
27 Sep 2017, 14:27
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hi, ng2. thanks for the prompt reply.
could you please tell me how did you convert this into a fraction. I mean this is a general form of the decimal right? so could you please elaborate on the answer.
could you please tell me how did you convert this into a fraction. I mean this is a general form of the decimal right? so could you please elaborate on the answer.
