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Mathematics 22 Online
OpenStudy (anonymous):

Sara has an average grade of 75 in 4 of her courses and an average grade of 60 in 2 other courses. WHat is her average grade for all the six courses?

OpenStudy (wasiqss):

70

OpenStudy (anonymous):

calculate the total and divide by the total number

OpenStudy (anonymous):

Why to calculate the total? Sorry some concept is needed for me? Like why cant I 75 +60 = 135 135/6 ?

OpenStudy (anonymous):

because the number of courses are more than one

OpenStudy (anonymous):

what u r doin 75 + 60 is meant for only two courses while you have 6 courses that is 75 + 75 + 75 + 75 + 60 + 60 = 420 total number of courses = 6 therefore average = \[{420}\over{6}\] = 70

OpenStudy (anonymous):

But I'm dividing it by 6?

OpenStudy (anonymous):

but total marks secured is 135 that is for 2 courses not for 6 courses

OpenStudy (anonymous):

No it's the average for it right?

OpenStudy (anonymous):

average of 6 courses cannot be calculated from two courses marks

OpenStudy (anonymous):

Wait 135 is the average for all the six courses aint it?

OpenStudy (anonymous):

no it is not

OpenStudy (anonymous):

How?

OpenStudy (anonymous):

wasi bhai samjhao isko

OpenStudy (anonymous):

hahaha

OpenStudy (anonymous):

You go \[75\times4=300\] Then \[60\times2=120\] then \[300+120=420\] Then divide:\[420\div6=70\] Therefor 70 is the answer

OpenStudy (wasiqss):

hehe sheg bhai tang agae :D

OpenStudy (anonymous):

Dekho 75 usne 4 test me liye avg sahi he or phir 60, 2 test me liye? sahi, to seedha avgs ko add kr k total se q nhi divide krte?

OpenStudy (anonymous):

kuch zyada ho gaya na bhai to tang hi aaunga :(

OpenStudy (wasiqss):

sheg bhai samjhata hun isse apne andaaz mai :P

OpenStudy (anonymous):

Ab samjha bhi do

OpenStudy (wasiqss):

han han jaldi kia hai puri raat parri hai :D

OpenStudy (anonymous):

Yaar mazaq nahi kal submit karana hai 8.30 class hai

OpenStudy (anonymous):

8.30 in morning Please

OpenStudy (wasiqss):

ruku baba samjha raha hun

OpenStudy (anonymous):

Waiting

OpenStudy (wasiqss):

ab suno , agar suppose tmhare pas 6 subjects hai physics,math ,chem,english, urdu, bio aur suppose physics ,math,chem,english, in sub sbject mai tmhare marks agae 75 ok and bache do , urdu and bio , suppose in mai agae 60 toh ab daikho total marks tmhare kitne honge

OpenStudy (anonymous):

P, M, C, E me ayenge 300 or U and B me aynge 120

OpenStudy (wasiqss):

sahi na toh tmhare total marks hogae kitne 420 ok?

OpenStudy (anonymous):

Haan bilkul theenk

OpenStudy (wasiqss):

ab daikho average kia hoti hai total marks/(number of subjects) ok?

OpenStudy (anonymous):

theek lekin yaar mera question ye he k jb hmare 2 avgs hain 6 subs k to dono ko add kr k total number of subs se q nahi divide kr skte?

OpenStudy (anonymous):

Wo to 70 ayega

OpenStudy (wasiqss):

ohhh wo keh raha hai ""each"" mai , toh each ka matlab jis jis mai bhi 75 and 60 hai un sb ko add krna hai

OpenStudy (wasiqss):

agar ek subject mai 75, and dosre mai 60 hote toh tnhahara wala tareeka apnaate

OpenStudy (anonymous):

Achaaa ok. Yaar ek or question he avg ka

OpenStudy (wasiqss):

kuch palle parra :P

OpenStudy (wasiqss):

dikhao dosra ques

OpenStudy (wasiqss):

@rebeccaskell94 you learning our language from this question seems like that :P

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