WBJEE Mathematics Practice Set 1
Original WBJEE-style math questions for algebra, functions, and calculation speed.
WBJEE
Exam Pattern & Rules
Total Questions
155
Total Marks
200
Duration
4 hours total (2 hours Paper 1 + 2 hours Paper 2)
Marking
Category 1: +1, Category 2/3: +2
Negative Marking: Category 1: -0.25, Category 2: -0.5, Category 3: none
Note: Paper 1 is Mathematics. Paper 2 is Physics + Chemistry.
Practice Set Details
Questions
6
Estimated Time
18 minutes
WBJEE Mathematics Practice Set 1: all 6 questions with answers
Try each question first, then open “Show answer” to check the correct option and explanation.
Q1.What is 15% of 200?
- A.25
- B.30
- C.35
- D.40
Show answer
Correct answer: B. 30
15% of 200 is 30.
Q2.If y = 2x + 3 and x = 2, what is y?
- A.5
- B.6
- C.7
- D.8
Show answer
Correct answer: C. 7
Substitute x = 2: y = 2 × 2 + 3 = 7.
Q3.If the perimeter of a square is 20 cm, what is the side length?
- A.4 cm
- B.5 cm
- C.6 cm
- D.8 cm
Show answer
Correct answer: B. 5 cm
Side length = perimeter / 4 = 5 cm.
Q4.Which value is equal to 3² × 3³?
- A.3⁵
- B.3⁶
- C.3⁴
- D.3⁷
Show answer
Correct answer: A. 3⁵
When multiplying powers with same base, add exponents: 3² × 3³ = 3⁵.
Q5.Which of these sets of numbers is in arithmetic progression?
- A.2, 4, 8
- B.3, 6, 9
- C.5, 8, 11
- D.1, 2, 4
Show answer
Correct answer: C. 5, 8, 11
The difference is constant: 8 − 5 = 3 and 11 − 8 = 3.
Q6.What is the product of 4 and 0.25?
- A.1
- B.0.5
- C.0.25
- D.2
Show answer
Correct answer: A. 1
4 × 0.25 = 1.