Question

My this Answer is coming to be 486/19 ;( kindly help me out​

Answer 1

Answer:

1/v= -27+18/-18×-27

1/v= -9/486

1/v= -1/54

v=-54cm

Explanation:

here when cross multiplying -18 and -1 it becomes positive and when -27 is multiplied by 1 it becomes -27