yadi kinhi 20 no ka average 20 hai. agr isme se hum har ek se 3 subtract karthe hai. tho new no ka average kya hoga?
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let no are a b c d ......
a+b+c+d....../20=20
now we have to find
a-3+b-3+c-3+....../20
eq 2 can be written as
a+b+c..../20-60/20 》 20-3=17
a+b+c+d....../20=20
now we have to find
a-3+b-3+c-3+....../20
eq 2 can be written as
a+b+c..../20-60/20 》 20-3=17
sunny4553:
hindi me solution do
bro itni to angrezi bhi nhi likhi
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