WBJEE Maths Answer Key 2025: The West Bengal Joint Entrance Exam for Maths Paper was successfully conducted today, April 27, 2025, from 11 AM to 2 PM. Candidates taking the entrance exam might be anxious to learn about their performance. We have updated the unofficial answer keys on this page. The test takers can refer to these unofficial answers and compare them with the recorded responses to predict the raw score.
In paper 1 Maths, the candidate had to answer 75 questions divided among three categories. Candidates can check the memory-based WBJEE Maths answer key 2025 here and understand where they stand before the results are published.
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WBJEE Unofficial Answer Key 2025
Find the correct answers for WBJEE 2025 Maths paper given in the table below. We suggest students assume a probable score by crossing the memory-based questions from the WBJEE Maths unofficial keys 2025.
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Questions |
Answers |
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Q1) if f(x)={x2+3x+a, bx+2, x<=1, x>1, x e R, is everywhere differentiable then |
A)a=3, b=5 |
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Q2) Let p(x) be a real polynomial of the least degree that has a local maximum at x=1 and a local minimum at x=3. If p(1)=6 and p(3)=2, then p(0) is equal to |
C) 3 |
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Q 3) The function f(x)= 2x3-3x2-12x+4, x eR has |
C) one local maximum and one local minimum |
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Q4) Let x=f(x)+ f(2a-x), x[0,2a] and f(x)>0 for all x9[0,a]. Then (x) is |
A)Decreasing on [0,a] |
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Q5) if g(f(x))= sin x and f(g(x))= (sin √x)2, then |
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Q6) The expression 24n-15n-1, where n N is divisible by 24n-15n- |
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Q7) If z1, z2 are complex numbers such that 2z1/3z2 is a purely imaginary number, then the value of |z1-z2/z1+z2| is |
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Q8) The value of the integral ∫3√x/√9-x + x√x dx |
A) 3/2 |
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Q9) The line y-√3x+3=0 cuts the parabola y2=x+2 at the points P and Q. If the point X is (√3,0), then the value of XP XQ is |
A) 4(2+√3/3 |
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Q10) Let f(x)=|1-2x|, then |
A) f(x) is continuous but not differentiable at x=1/2 |
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Q11) if f is the inverse function of g and g(x)=1/1+xn, then value of f(x) is |
A) 1+{f(x)}n |
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Q12) Let f be a function that is differentiable for all real x. If f(2) = -4 and f(x)>=6 for all x equivalent[2,4], then |
C) f(4)>=8 |
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Q13) If E and F are two independent events with P(E)= 0.3 and P(E u F0 = 0.5, then P(E/F)-P(F/E) |
C)1/70 |
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Q14) the set of points of discontinuity of the function f(x) = x-[x], x equivalent R is |
D) Z |
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Q15) For what value of “a”, the sum of squares of the roots of the equation x2-(a-2)x-a+1=0 will have the least value |
D) 1 |
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Q16) ∫11 x3+|x|+1/x2+2|x|+1 dx is equal to |
A) 2 log 2 |
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Q17) If sum of n terms of an AP is 3n2+5n and its mth term is 164, then the value of m is |
B) 27 |
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Q18) If 9P5+5, 9P4=10Pr, then the value of r is |
C) 5 |
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Q19) An n×n matrix is formed using 0,1, and -1 as its elements. The number of such matrices that are skew-symmetric is |
D) 3n(n-1)/2 |
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Q20) Let f(x) be a second-degree polynomial. If f(1) and p. Q, r are in AP then f(P) f(q), f(r) are |
A) In AP |
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Q21) A function f is defined by f(x)=2+(x-1)2/3 on|0,2|. Find correct statement. |
A), B), and C) |
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Q22) The straight line x-3/3=y-2/1=z-1/0 is |
D) perpendicular to the z axis |
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Q23) If the sum of squares of the roots of the equation x2-(a-2)x-(a+1)=0 is least for an appropriate value of the variable parameter the value of a is |
C) 1 |
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Q24) Let x-y=0 and x+y=1 be two perpendicular diameters of a circle of radius R. The circle will pass through the origin if R is equal to |
1/√2 |
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