Quantitative Aptitude - Arithmetic Ability Questions

The HCF and LCM of two numbers are 3 and 2730 respectively. If one of the numbers is 78, find the other number.

If 2sec2x - tan2x = 5 and 0° ≤ x ≤ 90°, then x = ?

Square root of 0.9 is equal to

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

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

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

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

Which of the following words does NOT belong with the others?