Grade 5 Averages

What is the rule for finding Average?

• Subtract the quantities and multiply the no. of quantities

• Add the quantities and multiply the no. of quantities

• Multiply the quantities and divide the no. of quantities

• Add the quantities and divide the no. of quantities

Rs. 10 + 65 kg / 2 is the average of Rs. 10 and 65 kg .

Is it true or false ?

• True
• cannot determine

• False

Find the average of the first 6 prime numbers

• 7.92
• 4.67
• 6.83
• 5.25

A man's total income in the first six months of a year was ₹6,000 and in the last six months of the year it was ₹7,200 . Find his monthly average income for that year .

• ₹1,500
• ₹1,800
• ₹2,000
• ₹1,100

The ages of the 5 children are 13 , 15 , 11 , 9 and 8 . Find the average of their age.

• 10.5
• 12.3
• 9.8
• 11.2

Find the average of 5 , 0 , 6 , 1/4 , and 1/2

• 2.35
• 2.8
• 2.1
• 2.5

Find the average of the first 4 odd numbers

• 5
• 7
• 9
• 4

A cricketer scored 20 , 10 , 120 , 0 and 150 respectively in 5 one-day matches . What was his average score?

• 60
• 100
• 45
• 80

In an office 20 clerks get a salary of ₹ 2,500 each and 10 officers get a salary of ₹ 4,000 each. Find the average salary of the employees in the office and explain the solution.

• The average salary of the employees in the office is ₹ 3,000.
• The average salary of the employees in the office is ₹ 4,500.
• The average salary of the employees in the office is ₹ 2,000.
• The average salary of the employees in the office is ₹ 3,500.

In a bundle of 20 sticks , there are 4 sticks each of length 1 m 50 cm , 10 sticks each of length

2 m and each of the rest is 1 m long . What is the average length of the sticks in the bundle ?

• 1.65 meters
• 1.45 meters
• 1.75 meters
• 1.60 meters