66. A four digits number a b c d is divisible by 11 if
only
(a)(a + b)(c + d) is divisible by 11
(b) ( c) (b + d) is divisible by 11
(e) (a - c)-(b-d) is divisible by 11
(d) (b + d)-(a + c) is divisible by 11
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Answer:
Step-by-step explanation:
Ans:(d) (b+d)-(a+c) is divisible by 11
yqhsjssses:
how
In order to find a number is divisible by 11 or not take the sum of alternate digits and find the difference. If it is divisible by 11 the number is divisible by 11
for eg: 273603. (3+6+7)-(0+3+2)=16-5=11, is a multiple of 11. Hence 273603 is divisible by 11
thnx
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the answer is D i.e. (b+d)-(a+c) is divisible by 11
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