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Dafna1
2 months ago
10

The average marks of shahid first four papers is 88 how much mark should he get in the fifth paper so that the average of five p

apers becom 90?
a.92
b.94
c.96
d.98
Mathematics
2 answers:
Zina [12.3K]2 months ago
7 0

Step-by-step Solution:

The average score of Shahid's first four exams is 88.

Let the marks on these papers be a, b, c, and d.

Then, we have:

⇒ a + b + c + d = 88 × 4

                    = 352

Assume the fifth exam marks to be x

For the average of all five papers to be 90:

⇒ (a + b + c + d + x)/5 = 90

⇒ a + b + c + d + x = 90 × 5

⇒ 352 + x = 450   (since a + b + c + d = 352)

⇒ x = 450 − 352

⇒ x = 98

Therefore, the correct answer is:

d. 98

Zina [12.3K]2 months ago
6 0
Your selection is option D: 98.
Calculations:
88 × 4 = 352
90 × 5 = 450
Therefore, 450 − 352 = 98

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Answer:

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Step-by-step explanation:

Given:

KL ║ NM,

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It is also true that

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and

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