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The sum of three numbers is 147. If the ratio between the first and second is 2:3 and that between the second and the third is 5:8, then the second number is

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Important Questions on Average

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CAT
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How to prepare for Quantitative Aptitude for the CAT>Chapter 5 - Average>Level of Difficulty>Q 52
The average height of 40 girls out of a class of 50 is 150 cm and that of the remaining girls is 155 cm. The average height of the whole class is
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CAT
IMPORTANT
How to prepare for Quantitative Aptitude for the CAT>Chapter 5 - Average>Level of Difficulty>Q 53
The average weight of 6 persons is increased by 1.5 kg when one of them, whose weight is 60 kg is replaced by a new man. The weight of the new man is
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CAT
IMPORTANT
How to prepare for Quantitative Aptitude for the CAT>Chapter 5 - Average>Level of Difficulty>Q 54
The average age of three boys is 24 years. If their ages are in the ratio 2:5:5 then the age of the youngest boy is 
EASY
CAT
IMPORTANT
How to prepare for Quantitative Aptitude for the CAT>Chapter 5 - Average>Level of Difficulty>Q 55
The average age of P, Q, R and S four years ago was 46 years. By including M, the present average age of all the five is 51 years. The present age of M is
EASY
CAT
IMPORTANT
How to prepare for Quantitative Aptitude for the CAT>Chapter 5 - Average>Level of Difficulty>Q 56
The average salary of 30 workers in an office is ₹1800 per month. If the manager's salary is added, the average salary becomes ₹1900 per month. What is the manager's annual salary?
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CAT
IMPORTANT
How to prepare for Quantitative Aptitude for the CAT>Chapter 5 - Average>Level of Difficulty>Q 57
If , q, r, s and t are five consecutive even numbers, then their average is
EASY
CAT
IMPORTANT
How to prepare for Quantitative Aptitude for the CAT>Chapter 5 - Average>Level of Difficulty>Q 58
The average of first five multiples of 7 is
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CAT
IMPORTANT
How to prepare for Quantitative Aptitude for the CAT>Chapter 5 - Average>Level of Difficulty>Q 59
The average weight of a class of 30 students is 50 kg. If the weight of the teacher be included, the average weight increases by 500 gm. The weight of the teacher is