Quantitative Aptitude - Arithmetic Ability Questions

The area of a rectangle in 60 sq.cm and its perimeter is 34 cm, then the length of the diagonal is

A and B can together complete a task in 18 hours. After 6 hours A leaves. B takes 36 hours to finish rest of the task. How many hours would A have taken to do the task if he worked alone?

A shopkeeper by selling 5 items, earns a profit equal to the selling price of 1 item. What is his profit percentage?

The average of a,b,c is 20 and that of b,c,d is 25; if d=30, then the value of a is

Kishan cycled a distance of 120 km at a certain speed. If he cycled 2 km slower every hour, he would have taken 3 more hours to reach his destination. What is the speed in kmph at which Kishan actually cycled?

If 2 T-shirts are offered free on purchase of 5 T-shirts, what is the effective discount (in %) on each T-shirt?

In the given figure, PQRS is a quadrilateral. If QR = 18 cmand PS = 9 cm,then what is the area (in sq. cm) of quadrilateral PQRS?

When a number is increased by 24, it becomes 104% of itself. What is the number?