SSC GD 2018 Question Paper Hindi (21-Feb2019) (Shift 3)

What should come in place of the question mark (?) in the following question?
1−[5−{2+(−5+6−2)
2
}]=?

A started running towards north direction at 6:00 a.m. B also started running towards north direction at 10:00 a.m. At what time will they meet if the speeds of A and B are in the ratio 3:7 and they started from the same point?

The area of the base of a right circular cone is
7
1408
​
cm
2
and its height is 6cm. Taking π=
7
22
​
, the curved surface area of the cone is:

The perimeter (in metres) of a semicircle is numerically equal to its area (in square meters). The length of its diameter is (Take π=
7
22
​
)

There are two numbers a
2
and 9. Their mean proportion is b, then (a
2
+b
2
):(a
2
−b
2
)=?