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?
70
calculate the total and divide by the total number
Why to calculate the total? Sorry some concept is needed for me? Like why cant I 75 +60 = 135 135/6 ?
because the number of courses are more than one
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
But I'm dividing it by 6?
but total marks secured is 135 that is for 2 courses not for 6 courses
No it's the average for it right?
average of 6 courses cannot be calculated from two courses marks
Wait 135 is the average for all the six courses aint it?
no it is not
How?
wasi bhai samjhao isko
hahaha
You go \[75\times4=300\] Then \[60\times2=120\] then \[300+120=420\] Then divide:\[420\div6=70\] Therefor 70 is the answer
hehe sheg bhai tang agae :D
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?
kuch zyada ho gaya na bhai to tang hi aaunga :(
sheg bhai samjhata hun isse apne andaaz mai :P
Ab samjha bhi do
han han jaldi kia hai puri raat parri hai :D
Yaar mazaq nahi kal submit karana hai 8.30 class hai
8.30 in morning Please
ruku baba samjha raha hun
Waiting
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
P, M, C, E me ayenge 300 or U and B me aynge 120
sahi na toh tmhare total marks hogae kitne 420 ok?
Haan bilkul theenk
ab daikho average kia hoti hai total marks/(number of subjects) ok?
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?
Wo to 70 ayega
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
agar ek subject mai 75, and dosre mai 60 hote toh tnhahara wala tareeka apnaate
Achaaa ok. Yaar ek or question he avg ka
kuch palle parra :P
dikhao dosra ques
@rebeccaskell94 you learning our language from this question seems like that :P
Join our real-time social learning platform and learn together with your friends!