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Questions 20
The average of 7 consecutive numbers is 20. The largest of these numbers is:
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A car travels at 60 km/h for the first 2 hours and 40 km/h for the next 3 hours. What is the average speed of the car?
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Three numbers are in the ratio 3 : 4 : 5 and their average is 24. The largest number is:
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In a family of 6, the average age is 25 years. If the youngest member is 5 years old, what was the average age of the family just before his birth?
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Find the average of the first five prime numbers.
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The average of 5 consecutive numbers is 20. The largest of these numbers is:
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Average of five numbers is 20. If each number is multiplied by 2, what will be the new average?
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The average of five numbers is 27. If one number is excluded, the average becomes 25. The excluded number is:
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A person travels at 4 km/h for the first half of a distance and at 6 km/h for the second half. What is the average speed?
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The average age of 30 students is 15 years. If the teacher's age is included, the average increases by 1 year. What is the teacher's age?
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Find the average of all odd numbers between 1 and 20.
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The average of 5 numbers is 20. If each number is multiplied by 2, what will be the new average?
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What is the average of first five prime numbers?
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The average of first five multiples of 3 is:
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Find the average of the first 15 natural numbers.
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The average weight of 8 men is increased by 1.5 kg when one of the men, who weighs 65 kg, is replaced by a new man. The weight of the new man is:
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If a car travels 240 km in 4 hours, what is its average speed?
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What is the average of first 50 natural numbers?
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What is the average of the first five prime numbers?
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The average age of a class of 30 students is 15 years. If the teacher's age is included, the average increases by 1 year. Find the teacher's age.
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