Quantitative Aptitude - Arithmetic Ability Questions

What is the value of Sin 30° + 2 Cos 30° ?

If x = at2 and y = 2at then

What is the equation of a line having a slope -1/3 and y-intercept equal to 6?

Select the odd word/letters/number/number pair from the given alternatives.

If Sumita earns 75/4% more than her boyfriend, find the approximate % her boyfriend earns less than Sunita.

If the value 5 = 2.236,then calculate the value of 405 - 1280-125

Two cars travel from city A to city B at a speed of 60 and 108 km/hr respectively. If one car takes 2 hours lesser time than the other car for the journey, then the distance between City A and City B?

P does half as much work as Q in 1/3 of the time. If together they take 15 days to complete a work, how many days will P take to do it alone?