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GATE CSE 2026 Session 1 Q4: Maximum elective credits under credit constraints

Question

A student needs to enroll for a minimum of 60 credits. A student cannot enroll for more than 70 credits. The credits are divided amongst project and three distinct sets of courses namely, core courses, specialization courses, and elective courses. It is compulsory for a student to enroll for exactly 15 credits of core courses and exactly 20 credits of project. In addition, a student has to enroll for a minimum of 10 credits of specialization courses. The maximum credits of elective courses that a student can enroll for is ______

Try it: multiple choice: exactly one correct option

Select one option
Wrong answer costs 1/3 mark in GATE.
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Answer: D (official GATE 2026 final answer key)

Concept used: Maximise one part by taking the total at its cap and the other parts at their minimums.

First step: Take 70 total credits and subtract the fixed 15 + 20 and the minimum 10 of specialization.

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Source: official GATE 2026 Session 1 CS question paper and final answer key, organised by IIT Guwahati. Question paper · Answer key

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