Quantitative Aptitude - Arithmetic Ability Questions

The sum of a non-zero number and 4 times its reciprocal is 17/2. What is the number?

A certain sum of money becomes 4 times of itself in 30 years at a rate of simple interest. In how many years it will become double of itself at the same rate of simple interest?

If the measures of the angles of a triangle are in the ratio. 1:2:3 and if the length of the smallest side of the triangle is 10cm, then the length of the longest side is

The diagonal of a cube is 192 cm. Its volume in cm3 will be 

Krish is 5 years younger than Parthiv. Eight years ago three times the age of Krish was 10 more than twice the age of Parthiv. Find Krish's present age?

If 3a=4b=6c and a+b+c=279 then a2+b2+c2 is equal to

What is the place value and face value of 9 in 68956 respectively?

If a + b = 1 and ab = -6, then what is the value of a3+ b3?