Quantitative Aptitude - Arithmetic Ability Questions

Coefficient of x2 in (x + 7)(5 - 3x)(3x - 6) is

If a website is selling smartphone at Rs 18,000 which is marked at Rs 25,000, then what is the discount (in %) at which the smartphone is being sold?

If 3x^2 + ax + 4 is perectly divisible by x - 5, then the value of a is :

What is the area (in sq cm) of an equilateral triangle of side 6 cm?

Cost of 4 pens, 6 note books and 9 files is Rs 305. Cost of 3 pens, 4 notebooks and 2 files is Rs 145. What is the cost (in Rs) of 5 pens, 8 notebooks and 16 files?

What is the value of cos2A/(1 + sinA)?

For triangle ABC, find equation of median AD if co­-ordinates of points A, B and C are (2,­4), (3,0) and (5,­2) respectively?

A telephone bill costs Rs.13 for 19 minutes. What is the cost in rupees for 15 minutes 50 seconds?(rounded to one decimal)