Question

A candidate scoring 20% in an examination fails by 30 marks while another candidate who scores 45% marks gets 20 marks more than the minimum marks required for a pass. Find the minimum pass percentage

Answer 1

Answer:

the minimum pass percentage is 25

Answer 2

Answer:

minimum pass percentage = 35%

Step-by-step explanation:

Let the total marks to pass = x

Now minimum marks to pass = 20% of x + 30

Also minimum marks to pass = 45% of x - 20

Therefore

45% of x - 20 = 20% of x + 30

45% of x - 20% of x = 30+20

45x/100 -20x/100 = 50

(45x-20x)/100 = 50

25x/100 = 50

25x = 5000

x = 5000/25

x = 200

Hence total marks in exam be 200

Now minimum marks to pass = 20% of x + 30

= (20× 200)/100+30

= 40 + 30

= 70

Hence minimum number to pass be 70

Now minimum % to pass =(70/200)×100 %

=70/2 %

= 35%

Hence minimum pass percentage = 35%