Rajeev failed in the examination because his answers were not ……. to the questions asked
Step 1: The word ``pertinent" means relevant or applicable to the matter at hand. In this context, the statement suggests that Rajeev's answers were not relevant to the questions asked.
Step 2: The other Option:
- ``Allusive" refers to something that hints at or indirectly suggests something else, which doesn't fit in this context.
- ``Revealing" means making something known, which is unrelated to the relevance of the answers.
- ``Referential" refers to something that points to or refers to something else, but it doesn't specifically imply relevance.
Thus, the correct answer is option (B) pertinent.
If the roots of the quadratic equation \( ax^2 + bx + c = 0 \) are real and equal, then: