Question

There was a game show
called " The Big 20". A contestant is paid
Rs.5 for each correct answer, but must
back Rs.4 for each wrong answer. After
answering 20 questions on the show, student won Rs.55. How many questions did he answer correctly.

A.13
B.14
C.15
D.16


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Answer 1

Answer:

Hey.

The answer is:-

C. 15

Thank you.

Please mark the answer as brainliest.

Answer 2

Answer:

15

Step-by-step explanation:

Let correct answe be x and wrong answer be y

equation i

x + y = 20   y = x-20

equatio ii

5x + 4y = 55

Subsitute equation i into ii

5x +4(x-20) = 55

5x + 4x-80 =55

9x =135

x = 15