Mathematics · JEE

Important Questions: Functions for JEE

42+ syllabus-aligned questions available

Quick answer

The most important Functions questions for JEE cover conceptual traps, standard results, and numerical patterns from Functions. Goodmarks provides 42+ 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.

Syllabus context

Part of Sets, Relations and Functions in JEE Main Mathematics.

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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

\frac{3}{5}

of its matches, how many matches did India play?

Q3MathsUnit 1: Sets, Relations and Functions

Find the quantifier which best describes the variable of the open sentence

x^{2}+2 \geq 0

Q4MathsUnit 1: Sets, Relations and Functions

9 / 16

of a number is 51 greater than

50 \%

of the number. Then, that number is

Q5MathsUnit 1: Sets, Relations and Functions

Let

f

be a function such that

f(3)=1

and

f(3 x)=x+f(3 x-3)

for all

x

Then find the value of

\boldsymbol{f}(\boldsymbol{3 0 0})

Q6MathsUnit 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?

Q7MathsUnit 1: Sets, Relations and Functions

\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

Q8MathsUnit 1: Sets, Relations and Functions

\sqrt[3]{27000}=

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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.