Quantitative Aptitude - Arithmetic Ability Questions

ΔXYZ is similar to ΔPQR. If ratio of Perimeter of ΔXYZ and Perimeter of ΔPQR is 4:9 and if PQ = 27 cm, then what is the length of XY (in cm)?

If x+1x = 4, then what is the value of x6+1x6 ?

Marked price of an item is Rs 900. On purchase of 2 items discount is 6%, on purchase of 3 items discount is 12%. Rajani buys 5 items, what is the effective discount?

The marked price of a pen is Rs 3000. The shopkeeper gives two successive discounts of 15% and a% to the customer. If the customer pays Rs 2142 for the pen, then what is the value (in percentage) of a?

If 4x + 3y = 11 and 3x + 2y = 8, then (x,y) is

If tanθ = 815, then 1-sinθ1+sinθ is

Which of the following equations has real and distinct roots?

ΔABC is right angled at B. If m ∠A = 60°, then what is the value of 1/√3 Cosec C?