Exams › SSC CGL (Prelims) › Maths

The average of five consecutive positive integers equals n. If the next two consecutive integers are also added to the set, the average of all seven integers will:

1. increase by 1.5
2. increase by 1
3. stay the same
4. increase by 2

Correct answer: increase by 1

Solution

For consecutive integers the average is the middle value. Five integers have their 3rd term as the average; seven integers have their 4th term as the average, which is one greater. So the average rises by 1.

Related SSC CGL (Prelims) Maths questions

• The ages of two friends, Ram and Ravi, differ by 7 years. Ram’s mother Mayadevi is three times as old as Ram, and Ravi is four times as old as his brother Soham. The ages of Mayadevi and Soham differ by 65 years. Find the age of Mayadevi (in years).
• The area of a rectangle is 54 cm². If its length is 9 cm, what is its breadth?
• The perimeter of a rectangle is 48 cm. If its length is 14 cm, what is its breadth?
• What is 15% of ₹800?
• What is the product of the first four prime numbers?
• Solve: $\sqrt{256} + \sqrt{36}$

⚔️ Practice SSC CGL (Prelims) Maths free + battle 1v1 →