Question

fourth
24. A student obtained 60°6 in Half-
yearly exam and 57% obtained in
annual exam in maths. If the part
of annual exam is twice of the part
of Half-yearly exam, then find the
average marks in maths.​

Answer 1

Step-by-step explanation:

IVEN 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

Answer 2

Step-by-step explanation:

0.58

answer is that ok thanks marked brainlist