Quantitative Aptitude - Arithmetic Ability Questions

The inradius of a equilateral triangle is 10 cm. What is the circum-radius (in cm) of the same triangle?

If Cos θ = 5/13, then Cosec θ = ?

If cosπ/4c - tanπ/4c = x, then x is

Speed of a boat along and against the current are 14 kms/hr and 8 kms/hr respectively. The speed of the current is

What should be added to 5(2x-y) to obtain 4(2x - 3y) + 5(x + 4y)?

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

The ratio of present ages of Rambha and Sarvesh is 8:5. After 7 years the ratio of their ages will be 5:4. What is Rambha's present age?

If 169 is subtracted from the square of a number, then the result obtained is 7056. What is the number?