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Averages-Aptitude-Questions

A student finds average of 10 positive integers. Each integer contains two digits. By mistake, boy interchanges digits of one number say ba for ab. Due to this, average becomes 1.8 less than previous one. What was difference of two digits a and b?


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In Arun's opinion, his weight is greater than 65 kg but less than 72 kg. His brother does not agree with Arun and he thinks that Arun's weight is greater than 60 kg but less than 70 kg. His mother's view is that his weight cannot be greater than 68 kg. If all are them are correct in their estimation, what is the average of different probable weights of Arun?

A student finds average of 10 positive integers. Each integer contains two digits. By mistake, boy interchanges digits of one number say ba for ab. Due to this, average becomes 1.8 less than previous one. What was difference of two digits a and b?

The average of first five multiples of 3 is:

A student finds the average of 10 positive integers. Each integer contains two digits. By mistake

the boy interchanges the digits of one number say ba for ab. Due to this

the average becomes 1.8 less than the previous one. What was the difference of the two digits a and b?

Averages Aptitude Questions

Arithmetic-Aptitude