In the first round, they will ask 5 questions to be done in 15 min. The questions as I remember are
1.a decimal to hexadecimal conversion
1.b octal to decimal
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some pipe and cistern question
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Draw the Venn diagram of A union (B intersection C)
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Prove that diagonals of a parallelogram are equal.
One question I don’t remember.
I was rejected in the first round so can’t tell you about next rounds.