Find Best campbell lutyens Placement Papers and Answers

The GFC of an odd number and an even number is 13. The greater number is 39. What is the lesser number?

the ratio of white balls to black balls is 1:2. if 9 balls
are added then the ratio of the balls become 2:4:3. find
the number of black balls. a) 12 b) 6 c)9 d)none

You have 8 balls. One of them is defective and weighs less
than others. You have a balance to measure balls against
each other. In 2 weighings how do you find the defective one?

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