Infosys Mathematical Ability Questions and Answers - Interview Preparation MCQ

If signs ‘+’ and ‘-’ and numbers 7 and 6 are used interchangeably, then which of the following equation would be correct?

If ‘+’ means ‘x’, ‘÷’ means ‘+’, ‘-’ means ‘÷’ and ‘x’ means ‘-’. Which of the following will be the value of the expression 32 ÷ 8 - 4 x 12 + 4 = ?

If ‘+’ means ‘-’, ‘-’ means ‘÷’, ÷ ‘’ means ‘x’, and ‘x’ means ‘+’. Which of the following will be the value of
the expression?

245 - 35 ÷ 3 + 14 x 36

In a class, Ram’s rank from top is 12 and Ramesh’s rank from bottom is 27. If they interchange their positions, Ram’s rank becomes 18th from the top. How many students are there in the class?

Consider the number 57645361, if the digit at unit place is decreased by 1, the digit at tens ‘place is
increased by 2, the digit at hundreds’ place is decreased by 1, the digit at thousands’ place is increased by 2
and so on, then after rearranging how many number appears twice?

In a certain code language, ‘FAN’ is written as “21”, then how will “COME” be written in that code language?

If ‘A’ means ‘subtraction’, ‘B’ means ‘division’, ‘C’ means ‘multiplication’, and ‘D’ means ‘addition’, then what will be the value of the following expression?

18 A 15 B 75 C 90 D 23