Quantitative Aptitude - Arithmetic Ability Questions

In a ∆ABC, BC is extended upto D, ∡ACD =120°, ∡B = 1/2 A. Then ∡A is

A, B and C invest to start a restaurant. The total investment was Rs 3 lakhs. B invested Rs 50,000 more than A and C invested Rs 25,000 less than B. If the profit at the end of the year was Rs 14,400 then what is C's share of the profit (in Rs)?

A sum of Rs 8000 is divided into two parts. The simple interest on first part at the rate of 21% per annum is equal to the simple interest on second part at the rate of 35% per annum. What is the interest (in Rs) of each part?

2cos[(C+D)/2]sin[(C-D)/2] is equal to

If x = 1.1, then what is the value of 4x2 -4x + 1 ?

If 5% of (P + Q) = 20% of (P – Q), then P is what percentage of Q?

What is the value of (1/√3 + sin45 ) ?

In a committee there are 25 members. If two members whose ages are 64 years and 40 years are replaced by the two new members, then average age of 25 members is decreased by 2 years. What is the average age (in years) of the new members?