1
GATE ECE 2012
MCQ (Single Correct Answer)
+2
-0.6
There are eight bags of rice looking alike, seven of which have equal weight and one is slightly heavier. The weighing balance is of unlimited capacity. Using this balance, the minimum number of weighings required to identify the heavier bag is
A
2
B
3
C
4
D
8
2
GATE ECE 2012
MCQ (Single Correct Answer)
+2
-0.6

One of the legacies of the Roman legions was discipline. In the legions, military law prevailed and discipline was brutal. Discipline on the battlefield kept units obedient, intact and fighting, even when the odds and conditions were against them.

Which one of the following statements best sums up the meaning of the above passage?
A
Thorough regimentation was the main reason for the efficiency of the Roman legions even in adverse circumstances.
B
The legions were treated inhumanly as if the men were animals.
C
Discipline was the armies’ inheritance from their seniors.
D
The harsh discipline to which the legions were subjected to led to the odds and conditions being against them.
3
GATE ECE 2011
MCQ (Single Correct Answer)
+2
-0.6
Three friends, R, S and T shared toffee from a bowl. R took 1/3rd of the toffees, but returned four to the bowl. S took 1/4rd of what was left but returned three toffees to the bowl. T took half of the remainder but returned two back into the bowl. If the bowl had 17 toffees left, how many toffees-were originally there in the bowl?
A
38
B
31
C
48
D
41
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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