Question

please solve these questions​

Answer 1

Answer:

2- (3)

3- (4)

Step-by-step explanation:

2.

pass marks- 40% of total marks

let total marks be x, then pass marks will be .4x

now 220 marks is 20 short of pass marks , therefore pass marks will be 240 which is equal to .4x

240=.4x

x= 600 marks maximum marks

3. let the pass marks be x

now 20% marks = 30 marks short of pass marks

20% = x-30

similarly

32% = x +42

subtract these equations we will get

12% = 72

which means that

100% will be ( 72/12)* 100

total marks will be = 600 marks

passing marks will be

20% + 30

150 marks which will be 150/600 *100 = 25%