Quantitative Aptitude - Arithmetic Ability Questions

Find the odd word / letter / number from the given alternative

The mean of marks secured by 45 students in division A of class X is 69, 65 students of division B is 65 and that of 50 students of division C is 63. Find the mean of marks of the students of three divisions of Class X.

Ages of Lalu and Balu are in the ratio of 1 : 2. After 7 years their ages ratio changes to 3 : 5. The elder person age is

A sum of Rs. 3000 yields an interest of Rs. 1080 at 12% per annum simple interest in how many years ?

If 177 is divided into 3 parts in the ratio 1/2 : 2/3: 4/5, then the second part is

If p3 - q3 = (p - q) ( (p - q)2 + x p q ) then value of x is

A trader buys 500 kgs of cotton for Rs 9,000. 10% of this cotton is spoiled due to rain. At what rate (Rs/Kg) should he sell the rest to earn 10% profit?

The line passing through point (-3,1) and point (x,5) is parallel to the line passing through point (-2,-1) and point (6,3). What is the value of x?