Question

8. In a quiz competition, Ravi gave answers of 70% of the questions. He failed to give
answers of six questions. Find the total number of questions asked in the quiz
competition.​

Answer 1

Answer:

20 questions are asked in the quiz competition.

Step-by-step explanation:

Let total number of question be X

Ravi gave answers = 70% of X

= 70/100× X

= 7/10x

He did not give answer of 6 questions

7/10x + 6 = X

7/10x-x. = -6

7x-10x/10= -6

-3x. = -6×10

X. = 6×10/3= 20✓Ans.

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Answer 2

$\huge\bold\purple{\bigstar{solution}}$

number of questions he failed to answer=6

percentage of questions he failed to answer=30%(100%-70%)

30%=6

let the total number of questions asked in the quiz competition

be x.

$30\% \: of \: x = 6$

$= > \frac{30}{100} \times x = 6$

$= > \frac{3}{10} \times x = 6$

$= > x = 6 \times \frac{10}{3}$

$= > x = 2 \times 10$

$= > x = 20$

hope this helps you