An aeroplan covers a certain distance at a speed of 240 km/hour in 5 hours. To cover the same distance in   $$ 1{2\over3} $$ hours it must travel at a speed of: 

What approximate value should come in place of the question mark(?) in the following question?
105.003+307.993+ 215.630=?

The average marks of 42 students in an examination, were 64. Later it was found that the marks of three students were misread as 72, 58 and 44 instead of the actual marks 64, 42 and 26 respectively. What are the correct average marks?

A basket consists of five blue balls, four green balls, two red balls and three yellow balls. Three balls are drawn at random. What is the probability that at least one blue ball is drawn?

The cost of levelling a ground in rectangular shape for a proposed garden at 80 paise per square meter is Rs.132 and the cost of fencing the same along its perimeter is Rs.78 at Rs.1.50 per meter. If the garden is extended in rectangular shape with its sides as cubes of the originally proposed garden, what will be the perimeter of the garden after extension?

An amount of Rs.56,742 is divided between X and Y in the ratio of 19 : 23. What is the difference between thrice the share of X and twice the share of Y?

Tarun and Uday together can complete a piece of work in 16 days; Uday and Vivek together can complete the work in 28 4/5 days; while Tarun and Vivek together can complete the work in 18 days. In how many days can Tarun alone complete the work?

If 0 ≤ θ ≤ 90⁰ and 4cos²θ - $$4{\sqrt { 3} \ }cosθ$$ + 3 = 0, then the value of θ is :