Question

9p3+3.9p2=10p3 find a through permutation

Answer 1

$\Large{\underline{\underline{\bf{Answer:-}}}}$

We know that,

10P3 = 10*9*8

9P3 = 9*8*7

9P2 = 9*8

So, 9P3 + 3.9P2 = 9*8*7 + 3*9*8

= 9*8*(7+3)

= 9*8*10

= 10P3

Hence, 9P3 + 3.9P2 =10P3 .

$\Large{\underline{\underline{\bf{Thanks}}}}$

Answer 2

We know that,

10P3 = 10*9*8

9P3 = 9*8*7

9P2 = 9*8

So, 9P3 + 3.9P2 = 9*8*7 + 3*9*8

= 9*8*(7+3)

= 9*8*10

= 10P3

Hence, 9P3 + 3.9P2 =10P3 .