SSC Selection Post 2019 Matriculation Level Question Paper (14 Oct, 2019) (Shift 2)

What is the area (in cm
2
) of a sector of a circle, with central angle 75
∘
, when the diameter of the circle is 9cm?

If 3.4% of 600×2.5% of x=382.5, then the value of x is:

If a+b+c=7, and a
2
+b
2
+c
2
=33, then what is the value of a
3
+b
3
+c
3
−3abc?

A shopkeeper sold an article for Rs. 540 at some profit. Had he sold it for Rs. 470, then there would have been a loss equal to one-sixth of the initial profit. What was the cost price (in Rs.) of the article?

If x−x
−1
=6, then the value of x
4
+x
−4
is: