A number is increased by 30% and then decreased by 20%. What is the net change?
Let number = 100. After 30% increase = 130. After 20% decrease = 130 × 0.80 = 104. Net change = 4% increase
The sum of three consecutive numbers is 81. What is the middle number?
Let numbers be x-1, x, x+1. Sum = 3x = 81, so x = 27
If A : B = 2 : 3 and B : C = 4 : 5, what is A : B : C?
A:B = 2:3 (multiply by 4) = 8:12. B:C = 4:5 (multiply by 3) = 12:15. So A:B:C = 8:12:15
Look at this series: 2, 6, 12, 20, 30, ? What comes next?
Pattern: 1×2, 2×3, 3×4, 4×5, 5×6, 6×7 = 42
If all roses are flowers and all flowers are plants, then all roses are plants. This is an example of?
This follows a logical chain where conclusion follows necessarily from premises - this is deductive reasoning
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A, B, C, D are four friends. A is taller than B. C is taller than D. B is taller than D. Who is the shortest?
From statements: A > B > D and C > D. D is shorter than all others, so D is shortest
Which number should replace the question mark? 3, 5, 9, 17, 33, ?
Pattern: 3×2-1=5, 5×2-1=9, 9×2-1=17, 17×2-1=33, 33×2-1=65
If COMPUTER is coded as DPNQVUFS, how is REASONING coded?
Each letter is shifted by +1 in alphabet. REASONING becomes SFBTPOJOH
In a code, FAST = 6-1-19-20. How would SHORT be coded?
Each letter is replaced by its position in alphabet (A=1, B=2... Z=26). SHORT = 19-8-15-18-20
Which word doesn't belong in this group: Apple, Banana, Carrot, Orange
Apple, Banana, and Orange are fruits. Carrot is a vegetable
Choose the word that is most similar in meaning to 'Benevolent':
Benevolent means kind and generous. Generous is the closest synonym
Find the word that is opposite in meaning to 'Ambiguous':
Ambiguous means unclear or doubtful. Clear is the opposite meaning
Complete the sentence: 'Despite his illness, he ___ to finish the project on time.'
The sentence requires past tense 'managed' to be grammatically correct
Identify the error in: 'The team were playing good football yesterday.'
'Good' should be 'well' when describing how something is done (adverb usage)
What does the acronym 'API' stand for?
API stands for Application Programming Interface, a set of rules for software interaction
Which of these is NOT a programming language?
HTML is a markup language, not a programming language. Others are programming languages
In OOPS, what does 'inheritance' allow you to do?
Inheritance allows a new class to be derived from an existing class, inheriting its properties and methods
What is the correct SQL syntax to select all records from a table named 'Students'?
The correct SQL syntax is 'SELECT * FROM table_name;'
What will be the output of: print(5 // 2) in Python?
The // operator is floor division. 5 // 2 = 2 (integer division, rounded down)
Which data structure uses LIFO (Last In First Out) principle?
Stack follows LIFO principle where the last element added is the first to be removed
