Question

If 7*1=48, 9*3=72, 5*3=16, then find the value of 10*3

Answer 1

Answer:

7*1=(7+1)(7-1)=8*6=48

9*3=(9+3)(9-3)=12*6=72

5*3=(5+3)(5-3)=8*2=16

so,

10*3=(10+3)(10-3)=13*7=91