Question

If,a+b=78,a-b=38 then,a÷b=????

Answer 1

Solution:-

given by:-

》a+b=78..........(1)

》a-b=38.........(2)
________________ adding both

》2a = 116

》a = 58

put a's value in eq(1)

》58 + b = 78

》b = 78 -58

》b = 20

now , we have

》a÷ b = 58÷20

》(a÷b = 2.9) ans

☆i hope its help☆

Answer 2

a  + b = 78 
a -  b = 38 
______
2a = 116 
______

a =116/2 

a = 58 

putting the value of a in a + b 

a + b = 78 

58 + b = 78 

b =78 - 58 

b = 20 


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main content:

a/b 

58/20 

2.9 


i hope this will help you

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