Sum Calculation | MCQs

Explanation

 46+37+29+5+14+33=164

Explanation

To find the sum of the four numbers, multiply the average by the total count of numbers:

Average = 24

Total count = 4

Sum = Average × Total count

Sum = 24 × 4

Sum = 96

Explanation

Formula: Sum = Average × Number of quantities

Calculation: 215 × 40 = 8600

Explanation

Given:

Average = 225

Number of quantities = 45

Sum of quantities = Average * Number of quantities

= 225 * 45

= 10125

Explanation

The sum of the values is calculated as the average multiplied by the number of values: 30 * 4 = 120.

Therefore, the sum of the values is 120.

Explanation

The arithmetic mean (average) is calculated by dividing the sum of the numbers by the count of numbers.

Given:

Mean = 77

Count of numbers = 13

Sum of numbers = Mean × Count of numbers

= 77 × 13

= 1001

Explanation

The arithmetic mean (average) of 25 values is 10, so we can set up the equation:

Sum of values / 25 = 10

Multiply both sides by 25:

Sum of values = 25 × 10

Sum of values = 250

So, the correct answer is: 250

Explanation

The sum of odd integers from 1 to 100 are - 1 + 3 + 5 + 7 + ……… + 99.

This is an Arithmetic Progression with the following parameters: First Number, a = 1 Last Number, l = 99 Common Difference, d = 2 So, the Number of terms in the Arithmetic Progression, n = (l - a)/d + 1 = (99 - 1)/2 + 1 = 98/2 + 1 = 49 + 1 = 50 So, the sum of the Arithmetic Progression, S = n/2(l + a) = 50/2(99 + 1) = 25 X 100 = 2500 So, the sum of odd integers from 1 to 100 = 2500