Quantitative Aptitude - Arithmetic Ability Questions

If A, B and C can do a job working alone in 12, 18 and 36 days respectively. They all work together for 2 day, then B quits. How many days will A and C take to finish rest of the job?

Rita buys 5 sarees at an average cost of Rs 2250. If she buys three more sarees at an average cost of Rs 2750, what will be the average (in Rs) of all the sarees she buys?

What is the value of Sin 30° + 2 Cos 30° ?

What is the simplified value of cosec 2A + cot 2A?

If the successive discounts be 20% , 10% and 5% , then the single equivalent rate of discount is

If (x – y) = 7, then what is the value of (x – 15)3 – (y – 8)3?

At what point does the line 2x + 5y = -6 cuts the X-axis?

If 9x+2 = 240 + 9x, the value of (8x)x is