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PLEASE ANSWER WITH SOLUTION PLS
1. A student scored 235 marks in the examination out of 300 marks. Calculate the percentage of marks secured by the student.

2. In an election, Magie N. Hawa got 70% of the total valid votes. If 15% of the total votes were declared invalid and the total numbers of votes is 560, find the number of valid vote polled in favour of Magie N. Hawa.

3. there are 108 girls in a school. 70% of the pupils in the school are boys. How many pupils are there in the school altogether?

Sagot :

Answer:

See below ↓

Step-by-step explanation:

1.

  • Score of the student on examination = marks scored / total marks
  • Score = 235/300 [Divide throughout by 5]
  • Score = 47/60 [Using long division, approximate to tenths place]
  • Score = 0.783 [Multiply with 100 to convert decimals → percentage]
  • Score = 78.3%

2.

  • Total valid votes = 560 x (100 - 15)%
  • Total valid votes = 560 x 0.85
  • Total valid votes = 476
  • Votes for Magie N. Hawa = 476 x 70%
  • Votes for Magie N. Hawa = 333.2 ≅ 333 votes

3.

  • 108 girls = (100 - 70)% of pupils
  • 108 / 0.3 = number of pupils
  • 360 pupils
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