Answer Posted / brijesh shah

I think We can think from reverse
like...
15/18+5/16-20/24
So
15/8 = 0.833
5/16 = 0.3125
20/24 = 0.083
SO Now 0.833 + 0.3125 - 0.083 = 1.0625
Now Come to Main Part We want this P Should become
15/18+5/16-20/24 means 1.0625
So (p-1)3 = 1.0625*3 = 3.1875 + 1 = 4.1875
So, P = 4.1875
Now Put that in (P-1)3 you get 1.0625 and ans of
15/18+5/16-20/24 also 1.0625
So ANS is 1.0625

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