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If m and n are integers then is n completely divisible by 10? A. The value of `"("(m)/(10)+(n)/(10)")"` is a integer value. B. The value of `"("(m)/(7)+(n)/(10)")"` is an integer value. C. value of n is greater than m.A. Any two of themB. A and B togetherC. Any of themD. All statements are required |
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Answer» Correct Answer - B From A `to m+n=10xxk` (let k is an integer value) From `B to 10m+7n=70xx1` (Let l is an integer value) From `C tongtm` From A and B `({:(10m+10n,=,100k),(10m+7m,=,70l):})/({:(10n-7n,=,100k-70l),(3n,=,100k-70l):})` `3n=10(10k-71):` Hence n is divisible by 10. Thus option A and B together are needed to solve the question. |
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