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The average of seven consecutive even numbers is 10. If the next three even numbers are included, then what is the new average?

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Important Questions on Arithmetic

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IMPORTANT
Quantitative Aptitude for the CAT>Chapter 2 - Arithmetic>Practice Exercises>Q 8
Average weight of three students is 40 kg. If the first student is twice the second and the second student is thrice the weight of the third student, then what is the weight of the student with lightest weight?
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Quantitative Aptitude for the CAT>Chapter 2 - Arithmetic>Practice Exercises>Q 9
In a test, the average marks of five students was found to be 50. However, during cross checking of the papers, it was discovered that the mark of one student was misread as 84 instead of 48. Find the correct average.
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Quantitative Aptitude for the CAT>Chapter 2 - Arithmetic>Practice Exercises>Q 10
The average weight of seven members of a family is 18 kg. If the head of the family is not considered, the average weight of the others would be 5 kg less. The weight of the head of the family is:
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Quantitative Aptitude for the CAT>Chapter 2 - Arithmetic>Practice Exercises>Q 11
In a prep school, the average weight of 30 girls in a class of 50 students is 16 kg and that of the remaining students is 15.5 kg. What is the average weight of the all the students in the class?
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Quantitative Aptitude for the CAT>Chapter 2 - Arithmetic>Practice Exercises>Q 12
The average amount of money that 10 girls have is ₹ 45. When two more girls join, the average increases by ₹ 2. Find the average amount of the two new girls.
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Quantitative Aptitude for the CAT>Chapter 2 - Arithmetic>Practice Exercises>Q 13

In what ratio must 35% spirit be mixed with pure spirit to get a resultant solution of 56% spirit?

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Quantitative Aptitude for the CAT>Chapter 2 - Arithmetic>Practice Exercises>Q 14
A beggar has 50 coins with an amount of ₹ 15 in the denominations of 25 paise and 50 paise. How many 25 paise coins are there with the beggar?
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Quantitative Aptitude for the CAT>Chapter 2 - Arithmetic>Practice Exercises>Q 15
Two litres of pure spirit is added to 6 L of a spirit solution containing 1623% spirit. What is the concentration of the spirit in the resultant solution?