1
GATE ECE 2012
MCQ (Single Correct Answer)
+2
-0.6
Raju has 14 currency notes in his pocket consisting of only Rs. 20 notes and Rs. 10 notes. The total money value of the notes is Rs. 230. The number of Rs. 10 notes that Raju has is
A
5
B
6
C
9
D
10
2
GATE ECE 2011
MCQ (Single Correct Answer)
+2
-0.6
The sum of n terms of the series 4 + 44 + 444 +.... is
A
$$\left(4/81\right)\;\left[10^{\mathrm n+1}\;-\;9\mathrm n\;-\;1\right]$$
B
$$\left(4/81\right)\;\left[10^{\mathrm n-1}\;-\;9\mathrm n\;-\;1\right]$$
C
$$\left(4/81\right)\;\left[10^{\mathrm n+1}\;-\;9\mathrm n\;-\;10\right]$$
D
$$\left(4/81\right)\;\left[10^\mathrm n\;-\;9\mathrm n\;-\;10\right]$$
3
GATE ECE 2011
MCQ (Single Correct Answer)
+2
-0.6
The fuel consumed by a motorcycle during a journey while traveling at various speeds is indicated in the graph below. GATE ECE 2011 General Aptitude - Numerical Ability Question 72 English 1

The distances covered during four laps of the journey are listed in the table below

GATE ECE 2011 General Aptitude - Numerical Ability Question 72 English 2

From the given data, we can conclude that the fuel consumed per kilometre was least during the lap

A
P
B
Q
C
R
D
S
4
GATE ECE 2011
MCQ (Single Correct Answer)
+2
-0.6
Given that f(y) = |y| / y, and q is any non-zero real number, the value of | f(q) - f(-q) | is
A
$$0$$
B
-1
C
1
D
2

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