1
GATE ECE 2010
MCQ (Single Correct Answer)
+2
-0.6
5 skilled workers can build a wall in 20 days; 8 semi-skilled workers can build a wall in 25 days; 10 unskilled workers can build a wall in 30 days. If a team has 2 skilled, 6 semi-skilled and 5 unskilled workers, how long will it take to build the wall?
A
20 days
B
18 days
C
16 days
D
15 days
2
GATE ECE 2010
MCQ (Single Correct Answer)
+2
-0.6
Given digits 2,2,3,3,3,4,4,4,4 how many distinct 4 digit numbers greater than 3000 can be formed?
A
50
B
51
C
52
D
54
3
GATE ECE 2010
MCQ (Single Correct Answer)
+2
-0.6
Modern warfare has changed from large scale clashes of armies to suppression of civilian populations. Chemical agents that do their work silently appear to be suited to such warfare; and regretfully, there exist people in military establishments who think that chemical agents are useful tools for their cause.

Which of the following statements best sums up the meaning of the above passage:

A
Modern warfare has resulted in civil strife.
B
Chemical agents are useful in modern warfare.
C
Use of chemical agents in warfare would be undesirable.
D
People in military establishments like to use chemical agents in war.
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