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Question 88Asked in RRB JE CBT-1, 20 Feb 2026, Shift 3 (4:30 PM)

The equations x² − 5x + 6 = 0 and x² +ax + b = 0, have exactly one common root, and the

The equations x² − 5x + 6 = 0 and x² +ax + b = 0, have exactly one common root, and the other root of the second equation is –4. Among the following, which are the possible values of a and b?
  1. Aa=3, b=−6
  2. Ba=1, b=12
  3. Ca=5, b=−20
  4. Da=2, b=−8
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Correct answer: (D) a=2, b=−8

From RRB JE CBT-1 PYQ 20 Feb 2026, Shift 3 (4:30 PM)

This is question 88 of RRB JE CBT-1 PYQ 20 Feb 2026, Shift 3 (4:30 PM). See all questions of this paper with answers, or attempt the paper as a timed online test to get your score and all-India rank.