Quantitative Aptitude - Arithmetic Ability Questions

Common factor of 12a4b6, 18a6c2, 36a2b2 is

The value of Cot17°Cot73°Cos222° + 1Cot17°Sec268° is

[sinA/(1 + cosA)] + [(1 + cosA)/sinA] is equal to

If x , y, and z are real numbers such that (x - 3)2 + (y - 4)2 + (z - 5)2 = 0 then (x+y+z) is equal to

The ratio of incomes of C and D is 3 : 2. Ratio of income of D and E is 5 : 4. If one-third of C’s income is Rs 4000 more than the half of E’s income, then what is the D’s income (in Rs)?

The incomes of S and T are in the ratio 3 : 4 and their expenditures are in the ratio 1 : 1. If S saves Rs 4000 and T saves Rs 22000, then what will be the income (in Rs) of S?

The price of an article is cut by 9%, to restore to its original value, the new price must be increased by

There is a circular garden of radius 21 metres. A path of width 3.5 metres is constructed just outside the garden. What is the area (in metres2) of the path?