Quantitative Aptitude - Arithmetic Ability Questions

A and B together can complete a piece of work in 12 days. They worked together for 5 days and then A alone finished the rest work in 14 days. A alone can complete the work in _____.

G is the centroid of ΔABC. If AG = BC, then measure of ∠BGC is

A wooden bowl is in shape of a hollow hemisphere of internal radius 7 cm and thickness 1 cm. What is the total surface area (in sq.cm) of the bowl? (Take:  = 22/7)

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

Ticket for an adult is Rs 2200 and a child is Rs 990. One child goes free with two adults. If a group has 23 adults and 11 children, what is the discount the group gets?

The value of cos220°+cos270° is

If 3x + 4y – 11 = 18 and 8x – 6y + 12 = 6, then what is the value of 5x – 3y – 9?

If the successive discounts be 20% , 10% and 5% , then the single equivalent rate of discount is