1
GATE ECE 2014 Set 1
Numerical
+2
-0
A train that is 280 meters long, traveling at a uniform speed, crosses a platform in 60 seconds and passes a man standing on the platform in 20 seconds. What is the length of the platform in meters?
Your input ____
2
GATE ECE 2014 Set 1
MCQ (Single Correct Answer)
+2
-0.6
You are given three coins: one has heads on both faces, the second has tails on both faces, and the third has a head on one face and a tail on the other. You choose a coin at random and toss it, and it comes up heads. The probability that the other face is tails is
A
1/4
B
1/3
C
1/2
D
2/3
3
GATE ECE 2013
MCQ (Single Correct Answer)
+2
-0.6
What is the chance that a leap year, selected at random, will contain 53 Sundays?
A
2/7
B
3/7
C
1/7
D
5/7
4
GATE ECE 2013
MCQ (Single Correct Answer)
+2
-0.6
Find the sum to n terms of the series 10 + 84 + 734 +.........
A
$${{9\left( {{9^n} + 1} \right)} \over {10}} + 1$$
B
$${{9\left( {{9^n} - 1} \right)} \over 8} + 1$$
C
$${{9\left( {{9^n} - 1} \right)} \over 8} + n$$
D
$${{9\left( {{9^n} - 1} \right)} \over 8} + {n^2}$$
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