1) What is the number system used in computers to represent data, a) Decimal b) Binary c) Octal d) Hexadecimal 2) Decimal number is convert to binary by, a) Addition b) Multiplication c) Substraction d) Division 3) Convert 2010 to binary number a) 101002 b) 111002 c) 001002 d) 011102 4) Convert 1510 to binary number a) 001012 b) 11112 c) 11102 d) 0111012

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