Question

A student obtained 60% in half yearly exam and 57% obtained in annual exam in maths. If the part of annual exams is twice of the part of half yearly exam , then find the average marks in maths

Answer 1

Answer:

Sorry bhai mujhe nahi ata. Tu google karle na fir.

Answer 2

Answer:

BRO SEE CAREFULLY AND I HOPE YOU WILL UNDERSTAND.....

Step-by-step explanation:

GIVEN 60% MARKS IN MATHS @ HALFYEARLY EXAM

57% MARKS IN MATHS @ FINAL EXAM

SO,, HERE

WE HAVE TO FIND HIS MARKS OF BOTH EXAMS BUT ACCORDING TO QUESTION

GET SOME KEYWORDS 》 HF-HALF YEARLY

FE-FINAL EXAM

SO, LET TOTAL MARKS IN HF BE (X)

THEREFORE TOTAL MARKS IN FE - 2X

60/100×1000= HIS MARKS IN HF

MEANS HE GAINED 600 MARKS

IN CASE OF HALF YEARLY,

HIS MARKS = 57/100× 1000×2

THEREFORE HIS MARKS IN FE=1140

NOW HIS AVERAGE MARKS = MARKS GAINED BY TOTAL MARKS

NOW, MARKS HE GAINED = 1140+ 600= 1740

TOTAL MARKS (BOTH EXAMS)= 1000+2000=3000

THEREFORE HIS AVERAGE MARKS =1740/3000

MEANS 》 0.58

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