Quantitative Aptitude - Arithmetic Ability Questions

In ΔABC, D and E are points on side AB and AC respectively. DE is parallel to BC. If lengths of AD, DB and DE are 9 cm, 6 cm and 5.4 cm respectively find length of BC?

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

Determine the value of a+1b-1 when ab = 343.

If P : Q = 9 : 7, then what is the value of (P – Q) : (P + Q)?

What is the value of Cot 45° + Cosec 60°?

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

In the following question, select the odd letter/letters from the given alternatives.

Ms. Kavitha borrowed Rs. 950 at 6% per annum simple interest. What amount will she pay to clear her debt after 4 years?