Mathematics · Quantitative Aptitude

Number Operations and Properties

974 Questions

Improve your quantitative aptitude with these number operations and properties questions. The topics range from basic subtraction and division to highest common factor and roman numerals. Regular practice of these fundamentals builds speed for exams.

Basic arithmetic operationsHCF and number propertiesRoman numeral calculationsNumber series evaluation

Number Operations and Properties Questions

Multiple choice

Directions: Use the following program segment.

SELECT CASE Choice CASE 10 Price = Quantity * UnitPrice CASE 20 Price = Quantity * UnitPrice * 0.95 CASE 30 Price = Quantity * UnitPrice * 0.90 CASE ELSE PRINT "Invalid Choice." END SELECT

What happens if Choice equals 21?

  1. Price equals Quantity- UnitPrice.

  2. Price equals 95% of Quantity - UnitPrice.

  3. Price equals 90% of Quantity -UnitPrice.

  4. Invalid Choice is displayed.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

When Choice equals 21, it doesn't match any of the specific CASE values (10, 20, or 30). The SELECT CASE structure falls through to the CASE ELSE clause, which executes the PRINT statement displaying "Invalid Choice." None of the Price calculations are performed because no matching CASE was found. Options A, B, and C are all incorrect because they suggest Price calculations occur, which they don't.

Multiple choice

Find the L.C.M. of 8 and 12.

  1. 8

  2. 12

  3. 16

  4. 24
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Multiples of 8 = 8, 16, 24, 32, 40 Multiples of 12 = 12, 24, 36, 48, 60 24 is the LCM of 8 and 12.

Multiple choice

Find the L.C.M of 8, 12 and 16.

  1. 24

  2. 36

  3. 40

  4. 48
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Multiples of 8 = 8, 16, 24, 32, 40, 48 Multiples of 12 = 12, 24, 36, 48, 60 Multiples of 16 = 16, 32, 48 LCM of 8, 12, 16 is 48.