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Question 3
Question: The sum of 11 results is 55. The sum of the first 6 results is 30 and that of the last 6 is 48. Find ti
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o
1) 20
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2) 24
4) 23
3) 13
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Answer 1

The sum of 11 results is 55. The sum of the first 6 results is 30 and that of the last 6 is 48. Find the sixth result.

The correct option for the sixth result is 4) 23.

Given:

The sum of 11 results is 55. The sum of the first 6 results is 30 and that of the last 6 is 48.

To Find:

The sixth result.

Solution:

To find the sixth result we will follow the following steps:

As we know,

$average = \frac{sum \: of \: all \: the \: numbers}{total \: numbers}$

According to the question:

The sum of 11 results is 55.

The sum of the last 12 digits will be = sum of the middle six + sum of the last 6 digits =

$30 + 48 = 78$

Now,

For finding the sixth number we will subtract the sum of the last 12 numbers with such m of the initial 11 numbers.

So,

Sixth result =

$78 - 55 = 23$

Henceforth, the correct option for the sixth result is 4) 23.

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