Quantitative Aptitude - Arithmetic Ability Questions

Find the area (in cm2) of a semi-circle of radius 28 cm.

If x2 – 16x – 59 = 0, then what is the value of (x – 6)2 + [1/(x – 6)2]?

If sinθ+cosθsinθ-cosθ=3,then the value of sin4θ-cos4θ is

Coefficient of x2in (x + 9)(6 - 4x)(4x - 7) is

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

Find out the odd word/letters/number pair from the given alternatives

Three years ago, the average age of a family of 5 members was 17 years. A baby having been born, the average age of the family is the same today. The present age of the baby is

If the age of Rahul is 5 years more than his friend Ajay's age and the age of Rahul's wife is 6 years less than Rahul, and Ajay's wife is 1 year older than Rahul's wife, then which of the following statements is true?