NEET UG free practice questions with answers
Read question 1 and its full worked answer from paper 1 of our 20-paper NEET UG set, then download the 4-page PDF. These are original practice questions, not official past papers. Page updated 3 November 2026.
A quantity is calculated as Z = A B² / C. The percentage errors in measuring A, B and C are 4%, 1% and 1% respectively. Find the maximum percentage error in Z.
A 4
B 5
C 6
D 7
Correct answer: D — 7
- For a product or quotient, the fractional errors add after being multiplied by the powers: ΔZ/Z = 1ΔA/A
+ 2ΔB/B + 1ΔC/C.
- Percentage error = 1×4 + 2×1 + 1×1 = 4 + 2 + 1.
- Maximum percentage error = 7%.
- Why the other options are wrong:
- A (4): Took only the largest contribution.
- B (5): Subtracted the error of the quantity in the denominator; errors always add.
- C (6): Forgot to multiply each error by the power of the quantity.
Maximum percentage error = Σ (power × percentage error of each measured quantity).
Your sample is downloading. Liked it? NEET UG Paper 1 is the full paper: 180 multiple-choice questions in 180 minutes (Physics 45, Chemistry 45, Biology 90 covering Botany and Zoology), four options with one correct answer, +4 for a correct answer and −1 for a wrong one, 720 marks, no calculator, with a worked solution for every question.
Get Paper 1 for A$11.99See all 20 papers from A$11.99More free India JEE and NEET samples
Questions about this sample
What is in the NEET UG free sample?
The first 3 questions from paper 1 of the set, in the real exam layout, followed by the step-by-step worked answers. It is a 4-page PDF; this page shows question 1 with its answer.
How many full NEET UG papers are there?
20 original papers for students in India preparing for NEET (UG) for entry to medical and allied courses. Each is 180 multiple-choice questions in 180 minutes (Physics 45, Chemistry 45, Biology 90 covering Botany and Zoology), four options with one correct answer, +4 for a correct answer and −1 for a wrong one, 720 marks, no calculator, with a worked solution for every question. Papers start at A$11.99 and download instantly as a PDF.
Are these official past papers?
No. The sample is taken from our own original practice paper and is not an official past paper or affiliated with any exam authority.