Question

kindly the explain this question using trick

Answer 1

Heya User,

---> We know the property of Indices that :->
           ( a )ᵇ⁻¹ = ( aᵇ ) / a

--> Now, 

--> 15 = 5 * 3 = 5 * 12 / 4 = ( 5 ) ÷ ( 4 / 12 ) 

--> But, ( 4 / 12 ) = ( 12 )^{P-1}

=> 15 = $\frac{12^Q}{12^{P-1}} = 12^{Q-(P-1)} = 12^{Q-P+1}$

Hence, by comparizon we get :->

-> C = Q - P + 1 ;