Quantitative Aptitude - Arithmetic Ability Questions

If the radius of a circle is decreased to 25% of its original value, calculate the percentage decrease in the area of the circle

Tapas, Avi and Rishi shared a cake. Tapa had 1/2 of it, Rishi had 1/3 of it, and Avi had the rest. What was Avi's share of the cake?

The average of 44 consecutive odd numbers is 144.What is the largest number?

Which of the fractions given below, when added to 5/8, gives 1?

Madhur works 2 times faster than Sagar. If Sagar can complete a job alone in 18 days, then in how many days can they together finish the job?

A can paint a house in 25 days and B can do it in 10 days. Along with C, they did the job in 6.25 days only. Then in how many days, C alone can do the job?

ABC is a triangle. AB = 5 cm, AC = √41 cm and BC = 8 cm. AD is perpendicular to BC. What is the area (in cm2) of triangle ABD?

20% discount is offered on an item. By applying a promo code the customer wins 10% cash back. What is the effective discount?