MEDIUM
7th ICSE
IMPORTANT
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The average weekly salary of 15 workers in a factory is ₹1285. If the salary of the manager is included, the average becomes ₹1355. What is the manager's salary? Write the answer in ₹.

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Important Questions on Average

MEDIUM
7th ICSE
IMPORTANT
New Mathematics Today Class 7>Chapter 26 - Average>Exercise>Q 10
The average distance travelled by a person in 4 days is 250 km. The distances travelled by him in first three days are 225 km, 180 km, 230 km, respectively. Find the distance travelled by him on the fourth day. Write the answer in km.
MEDIUM
7th ICSE
IMPORTANT
New Mathematics Today Class 7>Chapter 26 - Average>Exercise>Q 11
In a class of 20 girls and 15 boys, the average weight of the class is 42 kg. The average weight of the boys is 41.5 kg. What is the average weight of the girls? Write the answer in kg in decimal.
MEDIUM
7th ICSE
IMPORTANT
New Mathematics Today Class 7>Chapter 26 - Average>Exercise>Q 12
The average of 10 observations is 3.5. If two observations namely 3.5 and 2.5 are deleted, find the new average.
MEDIUM
7th ICSE
IMPORTANT
New Mathematics Today Class 7>Chapter 26 - Average>Exercise>Q 13
The average attendance of an office for the first four days of the week was 780 and for the first five days it was 840. How many were present on Friday?
MEDIUM
7th ICSE
IMPORTANT
New Mathematics Today Class 7>Chapter 26 - Average>Exercise>Q 14
The average number of eggs sold on Monday, Tuesday and Wednesday, in a shop was 43. The average for Tuesday, Wednesday and Thursday was 45. On Thursday the sale was 42. Find the sale on Monday.
HARD
7th ICSE
IMPORTANT
New Mathematics Today Class 7>Chapter 26 - Average>Exercise>Q 15
Average of 10 numbers is 30. Later on it was observed that the numbers 15, 23 are wrongly written as 51 and 32 The correct average is
HARD
7th ICSE
IMPORTANT
New Mathematics Today Class 7>Chapter 26 - Average>Exercise>Q 16
The average marks of 28 students in Mathematics was 50. 8 students left the school, then this average increased by 5. What is the average of marks obtained by the students who left the school?
MEDIUM
7th ICSE
IMPORTANT
New Mathematics Today Class 7>Chapter 26 - Average>Revision Exercise>Q 1
Find the average of the prime numbers between 4 and 10.