Question

Best answer will be marked as brainliest..​

Answer 1

Answer:

if you get some help please mark as brainlist

Answer 2

Step-by-step explanation:

Let right answers be x

and wrong answers be y

according to first condition equation will be,3x-y = 40 (eq. 1)

according to the second condition equation will be ,

4x - y = 50 (eq. 2)

On solving the equation by elimination method, we get,

x = 15

and substituting value of x in (eq 1)...we get,

y = 5

Hence, Yash answered 15 right answers and 5 wrong answers.

Therefore total questions were 20 (15+5).

I hope its helpful.. Thanks