A bag has certain number of pens. If you take out 3 pens at a time, 2 pens are left, if you take 4 pens, 1 pen is left and if you take 5 pens at a time, 3 pens are left in the bag. What is the smallest number of pens in the bag? […]
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Whats is Absolute value? Absolute value (or Modulus) represented by |x| of a real number x is the non-negative value of x without regard to its sign. For example: Absolute value of -3 => |-3| = 3 Absolute value of 7 => |7| = 7 Absolute value as distance? We can also think of absolute […]