Quantitative Aptitude - Arithmetic Ability Questions

An equilateral triangle ABC is inscribed in a circle of radius 20√3.
What is the length of the side of the triangle?

Rita buys 5 sarees at an average cost of Rs 2250. If she buys three more sarees at an average cost of Rs 2750, what will be the average (in Rs) of all the sarees she buys?

Roshan's current age is three years less than 1.5 times that of Usha's. 12 years ago Usha's age was three years more than half of Roshan's age. What is Roshan's present age in

By selling an item for Rs. 696 Unnati incurred a loss of 13%. By how much should she have raised the price to gain a profit of 10%?

The ratio of milk and water in three samples is 1 : 3, 3 : 5 and 11 : 5. A mixture containing equal quantities of all three samples is made. What will be the ratio of milk and water in the new mixture?

If a sum of Rs.12500 is invested for 1 year at 12% per annum interest being compounded semi­-annually, then interest earned is

The compound interest earned in two years at 12% per annum is Rs 10176. What is the sum (in Rs) invested?

In Δ ABC, the median AD is 8 cm and CB is 16 cm, measure of angle CAB is_____ .