Challenge Prelims V1.0 – Day 41 – CSAT Paper

1. Consider the following data:

What is the value of x? (UPSC 2020)

2. A family consists of a Mother, Father, Daughter and a son. Daughter is older than son. When the son was born, the average age of the family was 22. If the son is currently 2 years of age, then what is the current average age of the family?

3. Consider the following statements and Question with respect to an Arithmetic Progression (AP):

Statement-1: The sum of first and last term of an AP is 301.

Statement-2: The first term and common difference of the AP are respectively 2 and 3, and the AP consists of 100 terms.

Question: What is the average of all the terms of the AP?

With respect to the given statements and Questions which one of the following is correct?

4. Of the four numbers, the first is twice the second, the second is one-third of the third and third is five times the fourth. The average of the numbers is 33. The largest of these numbers is

5. Average marks of 5 students in a class is 25. Later on 5 grace marks were added to each student. Then what is the average of revised marks of these students?