The quotient, when the sum of 68 and 86 is divided by 14, is :
5
10
11
none of these
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According to the property, when ab + ba is divided by a + b, the quotient = 11.
So, when 68 + 86 is divided by 14 (6 + 8 = 14), the quotient = 11.
Hence, option 3 is the correct option.
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The quotient when 75 – 57 is divided by 9 is :
4
2
9
The quotient, when difference of the number 53 and the number obtained on reversing its digits is divided by 2 :
8
3
18