Aptitude · all questions

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Q261

The average of the two-digit numbers, which remain the same when the digits interchange their positions, is-

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Q262

The average of a non-zero number and its square is 5 times the number. The number is-

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Q263

The average age of a cricket team of 11 players is the same as it was 3 years back because 3 of the players whose current average age of 33 years are replaced by 3 youngsters. The average age of the new comers is :

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Q264

The average of five numbers is 27. If one number is excluded, the average becomes 25. The excluded number is ?

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Q265

If the average weight of 6 students is 50 kg. If two student of average weight of 51 kg are added and two other students of average weight of 55 kg are also added then the average weight of all the students is :

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Q266

The average of the squares of first ten natural numbers is-

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Q267

The average of 11 results is 50. If the average of the first six results is 49 and that of the last six is 52, the sixth number is -

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Q268

A man bought 13 articles at Rs. 70 each, 15 at Rs. 60 each and 12 at Rs. 65 each. The average price per article is -

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Q269

The average salary, per head, of all the workers of an institution is Rs. 60. The average salary of 12 officers is Rs. 400; the average salary, per head, of the rest is Rs. 56. The total number of workers in the institution is -

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Q270

The average of the three numbers x, y and z is 45. x is greater than the average of y and z by 9. The average of y and z is greater than y by 2. Then the difference of x and z is :

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Q271

4 boys and 3 girls spent Rs. 120 on an average, of which boys spent Rs. 150 on the average. The the average amount spent by the girls is-

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Q272

If the difference between the average of x, y and y, z is 12, then the difference between x and z is :

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Q273

In an examination average marks obtained by the girls of a class is 85 and the average marks obtained by the boys of the same class is 87. If the girls and boys are in the ratio 4 : 5, average marks of the whole class (approx.) is closest to :

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Q274

The average age of 40 students of a class is 15 years. When 10 new students are admitted, the average is increased by 0.2 year. The average age of the new students is :

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Q275

If a, b, c, d, e are five consecutive odd numbers, their average is :

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Q276

The average weight of 12 crewmen in a boat is increased by

\frac{1}{3}

kg, when one of the crewmen whose weight is 55 kg is replaced by a new man. What is the weight of that new man ?

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Q277

The average of 20 numbers is 12. The average of the first 12 numbers is 11 and that of the next 7 numbers is 10. The last number is ?

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Q278

The average of seven numbers is 18. If one of the numbers is 17 and if it is replaced by 31, then the average becomes :

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Q279

The average daily income of 7 men, 11 women and 2 boys is Rs. 257.50. If the average daily income of the men is Rs. 10 more than that of women and the average daily income of the women is Rs. 10 more than that of boys the average daily income of a man is -

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Q280

The average age of 11 players of a cricket team is increased by 2 months when two of them aged 18 years and 20 years are replaced by two new players. The average age of the new players is :

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