Quantitative Aptitude - Arithmetic Ability Questions

The income of X is 60% more than Y’s income and the income of Y is 40% more than Z’s income. X’s income is how much percentage more than Z’s income?

If sec (3x – 20°) = cosec (3y + 20°), then what is the value of tan (x + y)?

The average of four consecutive odd numbers is 64. What is the value of largest number?

Profit of Rs 12,400 has to be divided between three partners A, B and C in the ratio 5:7:8. How much does B get (in Rs)?

25% discount is offered on an item. By applying a promo code a customer wins 10% cash back. What is the effective discount?

What fraction of 2 hours is 12 seconds?

The sides of a triangle are in the ratio 1/2 : 1/3 : 1/4 and its perimeter is 104 cm. The length of the longest side (in cm) is

In each of the following questions two equations I and II are given. Solve both the equations and give answer:
$$\begin{gathered} I. x2+2x-195=0 \\ II. y2+30y+225=0 \end{gathered}$$