⚠️ Unofficial Original Practice: This practice paper is curated by educators to test key conceptual and analytical skills. It is not an official previous examination paper.Version 2026
Assessment Simulator
Bhabha Atomic Research Centre (BARC): BARC OCES Scientific Officer Diagnostic Paper
5 Questions • -1 negative marking
25:00
1Percentages & Fraction Equivalents
hard
A student multiplied a number by 3/5 instead of 5/3. What is the percentage error in the calculation?