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Errors in Sums, Differences and Combinations for JEE: 3 solved questions

Real JEE paper questions on errors in sums, differences and combinations, part of units and measurements. Each opens with the options, the correct answer and a step-by-step solution. Papers run from 2011 to 2023. No sign-in needed to read them.

What this topic asks

• Error in a sum or difference — 3 questions

All 3 questions with solutions

• Two resistances are given as R₁=(10±0.5) Ω and R₂=(15±0.5) Ω. The percentage error in the measurement of equi… JEE Main 6th April 1st Shift 2023
• Two resistors R₁=(4±0.8) Ω and R₂=(4±0.4) Ω are connected in parallel. The equivalent resistance of their par… JEE Main 1st Sept 2nd Shift 2021
• If 400 Ω of resistance is made by adding four 100 Ω resistances of tolerance 5%, then the tolerance of the co… JEE Main Re-Scheduled 2011