Quantitative Aptitude - Arithmetic Ability Questions

20% discount is offered on an item. By applying a promo code the customer wins 5% cash back. What is the effective discount?

1/(tanA + cotA) is equal to

Rahul's age is three times the age of Sumit. If Rahul is 15 years old presently, determine the age (in years) of Sumit after 12 years.

A starts from a point at a speed of 30 metre/second. After 3 seconds, B starts chasing A from the same point with a speed of 50 metre/second. What will be the total distance (in metres) travelled by A and B before A is caught by B?

If length of each side of a rhombus PQRS is 8 cm and ∠PQR = 120°, then what is the length (in cm) of QS?

1/4 of 12?

In the given figure, 3 semicircles are drawn on three sides of triangle ABC. Ab = 21 cm, BC = 28 cm and AC = 35 cm. What is the area (in sq.cm) of the shaded part?

If Cos θ = 35/37, then what is the value of Cosec θ?