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If u+v = 84 and u-v = 4 then u:v is equa...

If u+v = 84 and u-v = 4 then u:v is equal to:
यदि u+v = 84 तथा u-v = 4 है, तो u: v का मान होगा :

A

a) `11:10`

B

b) `10:11`

C

c)`10 : 9`

D

d) `9 : 10`

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