Category: Number System

Practice Test:Number System

If a three digit number ‘abc’ has 2 factors (where a, b, c are digits), how many factors does the 6-digit number ‘abcabc’ have? a.16   b.24   c.18   d.30 2. P and q...

divisibility by 7

Number System : Divisibility by 7

90 Days to CAT – A free short Course – Schedule  \/ Take the last digit off the number. Double it and subtract the doubled number from the remaining number. If the result is...

divisibility by 6

Number System : Divisibility by 6

90 Days to CAT – A free short Course – Schedule  \/ Method 1: Check the original number if it is both an even number (divisible by 2) and (divisible by 3). This is the...

divisibility by two

Number System : Divisibility by 2

90 Days to CAT – A free short Course – Schedule  \/ Take any number and note the last digit in the number, discarding the other digits. Then take that digit while ignoring the...

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