1
GATE ECE 2018
MCQ (Single Correct Answer)
+2
-0.67
A cab was involved in a hit and run accident at night. You are given the following data about the cabs in
the city and the accident.
(i) 85% of cabs in the city are green and the remaining cabs are blue.
(ii) A witness identified the cab involved in the accident as blue.
(iii) It is known that a witness can correctly identify the cab colour only 80% of the time.
Which of the following options is closest to the probability that the accident was caused by a blue cab?
(i) 85% of cabs in the city are green and the remaining cabs are blue.
(ii) A witness identified the cab involved in the accident as blue.
(iii) It is known that a witness can correctly identify the cab colour only 80% of the time.
Which of the following options is closest to the probability that the accident was caused by a blue cab?
2
GATE ECE 2017 Set 2
MCQ (Single Correct Answer)
+2
-0.67
Each of P, Q, R, S, W, X, Y and Z has been married at most once. X and Y married and have two children
P and Q, Z is grandfather of the daughter ‘S’ of P. Further Z and W married and are parents of R. Which
one of the following must necessarily be FALSE?
3
GATE ECE 2017 Set 2
MCQ (Single Correct Answer)
+2
-0.67
The number of 3 digit numbers such that the digit 1 is never to the immediate right of 2 is
4
GATE ECE 2017 Set 2
MCQ (Single Correct Answer)
+2
-0.67
1200 men and 500 women can build a bridge in 2 weeks. 900 men and 250 women will take 3 weeks to
build the same bridge. How many men will be needed to build the bridge in one week?
Questions Asked from Numerical Ability (Marks 2)
Number in Brackets after Paper Indicates No. of Questions
GATE ECE Subjects
Signals and Systems
Representation of Continuous Time Signal Fourier Series Discrete Time Signal Fourier Series Fourier Transform Discrete Time Signal Z Transform Continuous Time Linear Invariant System Transmission of Signal Through Continuous Time LTI Systems Discrete Time Linear Time Invariant Systems Sampling Continuous Time Signal Laplace Transform Discrete Fourier Transform and Fast Fourier Transform Transmission of Signal Through Discrete Time Lti Systems Miscellaneous Fourier Transform
Network Theory
Control Systems
Digital Circuits
General Aptitude
Electronic Devices and VLSI
Analog Circuits
Engineering Mathematics
Microprocessors
Communications
Electromagnetics