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Q.

Is it true that if a number is divisible by 4, then it must be divisible by 8?


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a

True

b

False  

answer is B.

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Detailed Solution

Given data,
A number is divisible by 4.
In the divisibility test of 4,
The last two digits of the numbers must be divisible by 4.
In the divisibility test of 8,
The last three digits of the number must be divisible by 8.
But it is not necessary that every number which is divisible by 4 has to be divisible by 8.
Therefore, our statement is false.
If a number is divisible by 4, then it is not necessary that the number will be divisible by 8.
Hence, option 2 is correct.
 
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