Quantitative Aptitude - Arithmetic Ability Questions

Find the odd word/letter/number pair from the given alternatives

Two numbers are 10% and 20% lesser than a third number respectively. By how much percent is the second number should be enhanced to make it equal to the first number?

Find the area (in cm²) of a semi-circle of radius 35 cm.

If cotθ = 4, then the value of 5sinθ+3cosθ5sinθ-3cosθ is

A and B have their annual average income Rs. 80,000.
B and C have their annual average income Rs. 75,000.
C and A have their annual average income Rs. 78,000.

The annual income of A is ?

If Tan θ = 7/24, then what is the value of Cosec θ?

What is the area (in sq cm) of a rhombus if the lengths of the diagonals are 12 cm and 14 cm?

If k is the largest possible real number such that p4+q4=(p2+kpq+q2)(p2-kpq+q2),then the value of k is