1
GATE ECE 2018
+1
-0.33
A 1.5 m tall person is standing at a distance of 3 m from a lamp post. The light from the lamp at the top of the post casts her shadow. The length of the shadow is twice her height. What is the height of the lamp post in meters?
A
1.5
B
3
C
4.5
D
6
2
GATE ECE 2018
+1
-0.33
What is the value of $$1 + {1 \over 4} + {1 \over {16}} + {1 \over {64}} + {1 \over {256}} + ......$$?
A
$${7 \over 4}$$
B
$${3 \over 2}$$
C
$${4 \over 3}$$
D
2
3
GATE ECE 2017 Set 1
+1
-0.3
In the summer, water consumption is known to decrease overall by 25%. A water Board official states that in the summer household consumption decreases by 20%, while other consumption increases by 70%.

Which of the following statement is correct?

A
The ratio of household to other consumption is 8/17
B
The ratio of household to other consumption is 1/17
C
The ratio of household to other consumption is 17/8
D
There are errors in the official's statement
4
GATE ECE 2017 Set 1
+1
-0.3
40% of deaths on city roads may be attributed to drunken driving. The number of degrees needed to represent this as a slice of a pie chart is
A
120
B
144
C
160
D
212
EXAM MAP
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CBSE
Class 12