Quantitative Aptitude - Arithmetic Ability Questions

What is the distance between the points (4,7) and (­1,­5)?

Find  two  natural  numbers  whose  sum  is  85 andtheleast common multiple is 102.

The rate of simple interest for which a sum of money becomes 5 times in 8 years is

If 9/4th of 7/2 of a number is 126, then 7/2th of that number is _____.

If secθ + tanθ = 4, then secθ - tanθ = ?

A boat covers a distance of 14 km upstream and 16 km downstream in 9 hours. It covers a distance of 12 km upstream and 40 km downstream in 11hours. What is the speed (in km/hr) of the boat in still water?

Select the odd letters from the given alternatives.

If (9 - 3x) - (17x - 10) = -1, then the value of x is