GATE 1991
Related Engineering Mathematics PYQs
How many 3-digit numbers can be formed from digits {1, 2, 3, 4} if repetition of digits is allowed?
What is the rank of the 2 × 2 matrix A = \[\begin{bmatrix}1 & 2\\2 & 4\end{bmatrix}\]?
A graph has 10 vertices and 15 edges. What is the sum of the degrees of all vertices?
Two fair coins are tossed independently. What is the probability of getting at least one Head?
An urn contains one red ball and one blue ball. At each step, a ball is picked uniformly at random from the urn, and this ball tog…
Consider 4 x 4 matrices with their elements from {0, 1}. The number of such matrices with even number of 1s in every row and every…
Free account benefits
Turn practice into measurable progress
Public PYQs and reference pages stay free. Sign in when you want GATEverse to remember what you studied and guide what to practise next.
Saved progressKeep answers, mock results and completion history across devices.
Adaptive practiceGet questions matched to your recent accuracy and difficulty level.
Bookmarks and notesBuild a personal revision list and record why a question was difficult.
Performance insightsSee weak subjects, accuracy trends, streaks and exam readiness.