Practice Test




Correct option is A

Explanation :
since 17! Is divisible by 9 so sum of the digits 48+x+y must be divisible by 9 so, x+y can be 15 or 16 Also 17! Is divisble by 11 so |10+x-y| must be multiple of 11 or zero .The only possibility is |x-y|=1 So, x+y=15
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SIMILAR QUESTIONS

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