1
GATE ECE 2017 Set 2
+1
-0.3
500 students are taking one or more courses out of Chemistry, Physics, and Mathematics. Registration records indicate course enrolment as follows: Chemistry (329), Physics (186), Mathematics (295), Chemistry and Physics (83), Chemistry and Mathematics (217), and Physics and Mathematics (63). How many students are taking all 3 subjects?
A
37
B
43
C
47
D
53
2
GATE ECE 2017 Set 2
+1
-0.3
Fatima starts from point P, goes North for 3 km, and then East for 4 km to reach point Q. She then turns to face point P and goes 15 km in that direction. She then goes North for 6 km. How far is she from point P, and in which direction should she go to reach point P?
A
8 km, East
B
12 km, North
C
6 km, East
D
10 km, North
3
GATE ECE 2016 Set 2
+1
-0.3
Given (9 inches)1/2 = (0.25 yards)1/2, which one of the following statements is TRUE?
A
3 inches = 0.5 yards
B
9 inches = 1.5 yards
C
9 inches = 0.25 yards
D
81 inches = 0.0625 yards
4
GATE ECE 2016 Set 2
+1
-0.3
S, M, E and F are working in shifts in a team to finish a project. M works with twice the efficiency of others but for half as many days as E worked. S and M have 6 hour shifts in a day, whereas E and F have 12 hours shifts. What is the ratio of contribution of M to contribution of E in the project?
A
1:1
B
1:2
C
1:4
D
2:1
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