Ji and Layla played a game in which they scored 10 points for a correct answer and lost 20 points for an incorrect answer. Ji an

Question

3 years ago

10

Ji and Layla played a game in which they scored 10 points for a correct answer and lost 20 points for an incorrect answer. Ji an

swered 7 questions correctly and 3 questions incorrectly. Layla answered 5 questions correctly and 1 question incorrectly. Who had the higher score? By how many points?

Mathematics

1 answer:

Finger [1] · Answer 1 · 2022-04-23T14:34:02+03:00

Layla had the higher score by 20 points.

Step-by-step explanation:

Given,

Points for correct answer = 10 points

Points for incorrect answer = 20 points

Loss means subtraction;

Therefore,

Total points of Ji = Correct answers*10 - Incorrect answers*20

Total points of Ji = 7*10 - 3*20

Total points of Ji = 70 - 60

Total points of Ji = 10 points

Total points of Layla = Correct answers*10 - Incorrect answers*20

Total points of Layla = 5*10 - 1*20

Total points of Layla = 50 - 20

Total points of Layla = 30 points

Difference = Points of Layla - Points of Ji

Difference = 30 - 10 = 20 points

Layla had the higher score by 20 points.

Keywords: multiplication, subtraction

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