Quantitative Aptitude - Arithmetic Ability Questions

The average marks of 40 students in an examination was 25. It was later found that the marks of one student had been wrongly entered as 73 instead of 37. What is the value of correct average?

If secA = x, then the value of x is

What is the value of (cosecA - cotA) / (secA + tanA)?

What is the compound interest earned on Rs 80,000 at 40% per annum in 1 year compounded quarterly?

If 4x + 1x = 5, (x≠0), then the value of 5x4x2+10x+1 is

What approximate value should come in place of the question mark (?) in the following equation (Note: You are not expected to calculate the exact value)?(55.01+16.0003)×22.01÷10.998 =?

If the sum of the digits of any integer between 100 and 1000 is subtracted from the same integer , the resulting number is always divisibleby

If ( x - 5)2 + (y - 2)2 + (z - 9)2 = 0, then value of (x + y - z) is