Quantitative Aptitude - Arithmetic Ability Questions

If 3x2 - ax + 6 = ax2 + 2x + 2 has only one (repeated) solution, then the positive integral solution of a is

If sinθ + cosθ = 1, then the sinθ cosθ is equal to

What is the value of 13×7+17×11+111×15+...+1899×903 ?

Select the odd word/letters/number/number pair from the given alternatives.

What is the value of Cot 60°- Cos 45°?

The average weight of 30 students in a class is 25 kgs. If the weight of the class teacher is added, the average weight increase by 2 kgs. The weight of the class teacher in kgs is

Of the 3 numbers whose average is 40, the first is 1/3 rd the sum of other 2. What is the first number?

If the number 247_679 is completely divisible by 9, then the smallest whole number in the place of the blank digit will be