Sharpen your quantitative and logical reasoning skills with this tech aptitude quiz designed to help you stand out in a competitive and rapidly evolving job landscape.
If the average of five consecutive numbers is 17, what is the largest number in the series?
Explanation: For five consecutive numbers with an average of 17, the middle number is 17. The numbers are 15, 16, 17, 18, and 19, so the largest is 19. Options 20, 21, and 23 are too high for this series, while 19 fits the pattern correctly.
Which number logically completes the series: 2, 6, 12, 20, ?
Explanation: The pattern is n(n+1), where n starts at 1: 1x2=2, 2x3=6, 3x4=12, 4x5=20, and the next is 5x6=30. Options 32 and 28 do not fit the pattern; 24 jumps out of sequence.
All developers are tech-savvy. Some tech-savvy people are mathematicians. Which conclusion follows?
Explanation: Since all developers are tech-savvy and some tech-savvy people are mathematicians, it's possible some developers are mathematicians. Option 1 is incorrect as it overstates the case. Option 2 is not supported by the statements. Option 4 is incorrect given the overlap.
A product is bought for $80 and sold at a 25% profit. What is the selling price?
Explanation: A 25% profit on $80 is $20 (0.25x80). Adding this to the cost price gives $100. Option $90 is too low, $95 is not a 25% increase, and $120 is too high for this percentage.
Which concept allows an object to take on multiple forms in object-oriented programming?
Explanation: Polymorphism enables an object to take on multiple forms. Inheritance is for acquiring properties, encapsulation hides data, and abstraction simplifies complexity, but only polymorphism fits the definition provided.