In an examination, A has scored 20 marks more than B. If B has scored 5% leas marks . than A, how much has B scored ?
Answers
Answered by
5
Answer:
If B is 380, A will be 400. Now, 5% of 400 = 20. So B will be 400 – 20 = 380. Hence (b) is correct.
Answered by
3
Answer:
380
Step-by-step explanation:
Let B scored m marks.
So, A scored m + 20 marks.
Let maximum marks be M.
According to the question, B has scored 5% less marks than A.
So, marks scored by B = (100 - 5)% of A
m = 95/100 × (m + 20)
100m = 95m + 1900
5m = 1900
m = 380
this is ur answer.hope u understand.
Similar questions