Quantitative Aptitude - Arithmetic Ability Questions

If a+b=5 then the value of a-37+b-27 is

Find the value of 6813+6413314

If cos2x + cos4x = 1, then tan2x + tan4x =

Each of the questions below consists of a question and two statements numbered, I and II given below it. You have to decide whether the data given in the statements are sufficient to answer the question. Read both statements and choose the most appropriate option. Among M, N, D, P and K, who earns more than only the least earner among them?

I. N earns more than M and P but less than only D.
II. M earns more than P who earns more than K.

If sec -7π/4 = x, then the value of x is

What is the value of √121 + √12321 + √1234321 + √123454321?

There is 40% increase in an amount in 10 years at simple interest. What will be the compound interest of Rs. 30000 after 3 years at the same rate?

Six year ago Parvez’s age was same as the present age of Manish. If the present age of Parvez is one-fourth more than that of Manish's present age, then in how many years will Parvez’s age become double of Manish’s present age?