Question

if
1 = 0
2 = 4
3 = 5
7 = 8

then

9 = ?

give answer fastly..

Answer 1

here

1 = 0 ...(1)
2 = 4 ...(2)
3 = 5 ...(3)
7 = 8 ...(4)

now add equation (1) , (3) & (4) and subtract from equation (2)

=> 1+3+7–2 = 0+5+8 – 4

=> 11 – 2 = 13 – 4

=> 9 = 9 is Answer ...

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Hope it will help you ...✌✌