Quantitative Aptitude - Arithmetic Ability Questions

The price of an article is cut by 31%, to restore to its original value, the new price must be increased by

If sec (4x - 50°) = cosec(50° - x), Then the value of x is

If a+1b = 1 and b+1c = 1 then c+1a = ?

What will be the value of r2+p2+s2-rp-ps-rs when r = 4, p = 2, s = 8?

If sin (3x ­ 20°) = cos (3y + 20°), then find the value of (x + y).

Visitors to a show were charged Rs. 15 each on the first day, Rs. 7.50 on the second day, Rs. 2.50 on the third day and total attendance on three days were in the ratio 2:5:13 respectively. The average charge per person for the entire three days is

By increasing the price of entry ticket to a fair in the ratio 17:19, the number of visitors to the fair has decreased in the ratio 11:10. In what ratio has the total collection increased or decreased?

What is the value of [2 sin (45 + θ) sin (45 – θ)]/cos 2θ?