Quantitative Aptitude - Arithmetic Ability Questions

What is the value of cosecA/√(cosec2A ­- 1)?

You are given a question and two statements. Identify which of the statements is/are sufficient to answer the question.

Question:

What is the total age of the sisters 10 years from now?

Statements:

1. Lina is 20 years old now.

2. Lina's sister's age is twice that of the age of Lina.

Determine the value of 1r+1s when r3+s3=0 and r+s=6 ?

Rizvan walks at 15 km/hr and Ruchitha cycles at 20 km/hr towards each other. What was the distance between them when they started if they meet after 42 minutes?

X alone can do a piece of work in 12 days and Y alone can do the same work in 6 days. In how many days will both together complete the same work?

The sum of all prime numbers between 58 and 62 is

When 0.151515.....is converted into a fraction, then the result is

Find the difference between place value and face value of 7 in 589573212.