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CAT
IMPORTANT
Earn 100

The average marks of the girls in a class is equal to the number of boys and the average marks of boys is equal to the number of girls. If the class average is 4 less than the average of both the boys' and the girls' average marks, what will be the number of students in the class?

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Important Questions on Arithmetic

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CAT
IMPORTANT
Quantitative Aptitude for the CAT>Chapter 2 - Arithmetic>Practice Exercises>Q 2
In the above question, what can be the minimum number of students in the class?
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IMPORTANT
Quantitative Aptitude for the CAT>Chapter 2 - Arithmetic>Practice Exercises>Q 3
A, B, C, D, and E are five consecutive integers and the average of these five numbers is less than 14 th of A. Then, A is:
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Quantitative Aptitude for the CAT>Chapter 2 - Arithmetic>Practice Exercises>Q 4
Find the difference between the average of the first $n$ even numbers and the average of all the even numbers up to n (n is an even number).
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CAT
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Quantitative Aptitude for the CAT>Chapter 2 - Arithmetic>Practice Exercises>Q 5
I was born 30 years after my father was born. My sister was born 25 years after my mother was born. The average age of my family is 26.25 years right now. My sister will get married 4 years from now and will leave the family. Then, the average age of the family will be 1073 years. What is the age of my father?
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IMPORTANT
Quantitative Aptitude for the CAT>Chapter 2 - Arithmetic>Practice Exercises>Q 10
A shipping clerk has to weigh six distinct packets. He weighs them four at a time, weighing all the possible combinations of the packets from the six. The average weight of all the weighing combinations is found to be 500 g. What is the combined weight of all the six packets?
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CAT
IMPORTANT
Quantitative Aptitude for the CAT>Chapter 2 - Arithmetic>Practice Exercises>Q 22
The average of five positive numbers is A. The average of the average of all the possible distinct triplets of these five numbers is B. Which of the following is true?
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CAT
IMPORTANT
Quantitative Aptitude for the CAT>Chapter 2 - Arithmetic>Practice Exercises>Q 23
The average of five positive numbers is A. The average of the average of all the possible distinct pairs of these five numbers is B. Which of the following is true?
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CAT
IMPORTANT
Quantitative Aptitude for the CAT>Chapter 2 - Arithmetic>Practice Exercises>Q 27
The average age of Mr and Mrs Sinha at the time of their marriage in1972 was 23 years. On the occasion of their anniversary in 1976, they observed that the average age of their family had come down by 4 years compared to their average age at the time of their marriage. This was due to the fact that their son Vicky was born during that period. What was the age of Vicky in 1980 ?