If 3=18 4=32 5=50 6=72 7=98 Than 10=?

Agree.

Mr. Mohammad Tohamy Hussein Hussein .

And God knows best.

I think it has to be160

X *2X = Y

3 * (2*3) =18

4 * (2*4) =32

.....................

10 * (2*10) =200

yes it's200.200= (10*(9+11))

10=200

its160....

3*6=184*8=325*10=506*12=727*14=9810*16=160

one hundred and sixty

The answer is200,

3*6=18

4*8=32

5*10=50

6*12=72

7*14=98

8*16,9*18,

10*20=200

10 will equal160 (10 *16).

The answer will be 

10*160