Quantitative Aptitude - Arithmetic Ability Questions

If cos 60° - sec 30° = x, then the value of x is

What is the HCF (highest common factor) of 77 and 275?

In the series 5442673314884743581,the number of 4s that are completely divisible by the number on their right but not divisible by the number on their left is

The product of two decimals is 0.768. If one of the decimal number is 1.6, find the other.

If in a two digit number, the digit at unit place is y and the digit at tens place is 5, then the number is

What is the value of 2sec2A?

ΔPQR is right angled at Q. If m∠R = 45°, then find the value of (tanP - 1/2).

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