List of top Mathematics Questions on Average asked in CUET (UG)

For predicting the straight-line trend in the sales of washing machines (in thousands) on the basis of 8 consecutive years' data, the company calculates 4-year moving averages. If the sales of washing machines for respective years are \( a, b, c, d, e, f, g, \) and \( h \), then which of the following averages will be computed?
(A) \( \frac{a + b + c + d}{4} \)  
(B) \( \frac{a + c + d + e}{4} \)  
(C) \( \frac{c + d + f + h}{4} \)  
(D) \( \frac{b + c + d + e}{4} \)  
Choose the correct answer from the options given below:

For the given five values 17, 26, 20, 35, 44, the three years moving averages are :

In an examination the marks of six boys are 48, 59, 57, 37, 78, and 57 respectively. The average marks of all the six boys are :

If the average of \(15, 25, 19, 20, 23, 18\) and\( (x-3)\) is \(20\). then Find the average of \(x, (x+6), (2x-1)\) and \(23\).

The average of a positive number, its square and 3 is 5. Find the number.

Find the average of squares of first five natural numbers.

Find the average of first 10 prime numbers.