Quantitative Aptitude - Arithmetic Ability Questions

If Cot θ = 21/20, then what is the value of Cosec θ?

The orthocentre of an obtuse­angled triangle lies

If x – y – √18 = –1 and x + y – 3√2 = 1, then what is the value of 12xy(x2 – y2)?

Mukesh got series of discount 30%, 25%, 15% on his shirt. Find out the single equivalent discount.

The HCF of two numbers is 12 and their LCM is 72. If one of the two numbers is 24, then the other number is

What will be the quotient when 2143 is divided by 38?

If (1 - sinA)/(1 + sinA) = x, then x is

What is the simplified value of (sin A – cosec A)(sec A – cos A) (tan A + cot A)?