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Mathematics · JEE

Important Questions: Functions for JEE

20+ syllabus-aligned questions available

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The most important Functions questions for JEE cover conceptual traps, standard results, and numerical patterns from Functions. Goodmarks provides 20+ high-yield MCQs with full solutions.

Focus on what matters most. These important Functions questions cover high-weightage concepts from Functions — the topics JEE repeats every year.

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Q1MathsUnit 1: Sets, Relations and Functions
The price of 357 mangoes is Rs.1517.25. What will be the approximate price of 49 dozens of such mangoes?
Q2MathsUnit 1: Sets, Relations and Functions
Indian cricket team won 4 more matches than it lost with New Zealand. If it won 35\frac{3}{5} of its matches, how many matches did India play?
Q3MathsUnit 1: Sets, Relations and Functions
9/169 / 16 of a number is 51 greater than 50%50 \% of the number. Then, that number is
Q4MathsUnit 1: Sets, Relations and Functions
Let ff be a function such that f(3)=1f(3)=1 and f(3x)=x+f(3x−3)f(3 x)=x+f(3 x-3) for all xx Then find the value of f(300)\boldsymbol{f}(\boldsymbol{3 0 0})
Q5MathsUnit 1: Sets, Relations and Functions
35 workers can build a house in 16 days. How many days will 28 workers working at the same rate take to build the same house?
Q6MathsUnit 1: Sets, Relations and Functions
0.86×0.86×0.86+0.14×0.14×0.10.86×0.86−0.86−0.14+0.14×0.1\frac{0.86 \times 0.86 \times 0.86+0.14 \times 0.14 \times 0.1}{0.86 \times 0.86-0.86-0.14+0.14 \times 0.1} is equal to
Q7MathsUnit 1: Sets, Relations and Functions
270003=\sqrt[3]{27000}=
Q8MathsUnit 1: Sets, Relations and Functions
If k>0k>0 A:(−1)(−2)(−k)\mathbf{A}:(-\mathbf{1})(-\mathbf{2})(-\boldsymbol{k}) B:(1)(2)(k)\mathrm{B}:(1)(2)(k) Then

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Frequently asked questions

What makes a Functions question "important" for JEE?

Important questions test core concepts that appear frequently across JEE Main and Advanced papers — definitions, standard formulas, and classic problem types.

Which subtopics in Sets, Relations and Functions are high-weightage?

Key areas include Functions. Prioritise these before moving to edge cases.

How many important questions should I revise?

Revise 30–50 important MCQs per unit in the last month before JEE. Focus on questions you got wrong at least once.

Can I practise only important questions on Goodmarks?

Pro users can filter by unit and subtopic to target high-yield areas. Free users can attempt sample questions on this page.

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