Average age of a class of 28 students is 10 years. Average age of the class is increased by 12 months if the age of the teacher is included. Find...
The average of all prime numbers between 32 and 69 is.
Komal bought 20 kg rice for Rs 30 per kg, b kg rice for Rs 35 per kg and (b + 4) kg rice for Rs 25 per kg. She mixed all type of rice together and the a...
- 6 students ‘P’, ‘Q’, ‘R’, ‘S’, ‘T’ and ‘U’ took part in a quiz competition. The average score of all 6 was 72 marks. The average sc...
In an exam of 100 marks, the average marks of a class of 38 students are 72. If the top 3 scorers of the class leave, the average score falls “dow...
The average of 25, 46, and ‘y’ is 28. What is the value of ‘y’?
The average of the first and second numbers is 45, while the average of the second and third numbers is 55. If the sum of the first and third numbers is...
Average of 10 observations calculated by a student was 60 but when he again went through his observations he realised that he took value of three observ...
In a class of ‘x’ students, if a new student weighing 32 kg joins the class, then the average weight of the class increases by 1 kg. If the ...
If average of first 11 numbers is (n – 46) and the sum of remaining number is 1850. Find the value of ‘n’, if the average of 25 numbers is ‘n’...
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