SSC Selection Post 2022 Graduation Level Question Paper (05 Aug, ..

A retailer offers the following discount schemes for buyers on an item.
i) Two successive discount of 20%.
ii) A discount of 25% followed by a discount of 15%.
iii) A discount of 40%.
Under which scheme(s) will the selling price be minimum?

If cosθ=sin(2θ)

=0, what is the value of cos
4
θ+sin
4
θ+cos
3
θ+sin
3
θ+sin
2
θ+cos
2
θ+sinθ+cosθ?

A student wants to know the area of a rhombus, one of whose diagonals is 6 cm. He measures another diagonal as 8 cm. What is the area of the rhombus?

What is the fourth proportional of 21,56 and 27?

A person received a yearly salary hike of 15%, 20%, and 25% in 3 successive years. What is the total salary of the person after 3 years if his initial salary was Rs. 20,000?