PQ * P3= 57Q.
P=? Q=?
Answer :
We have PQ P3 = 57Q
We can see that unit digit of our solution is obtain by Q 3 = Q , from that we get unit digit same
First we can check for 0 , And get
0 3 = 0
Now we check that
20 23 = 460
or
30 33 = 990
Here we can't get 570 as given in our equation .
So now we check for Q = 5
So,
5 3 = 15
here we get unit digit of solution is same ( 5 )
So now we get
25 23 = 575
So ,
P = 2 And Q = 5 ( Ans )
We have PQ P3 = 57Q
We can see that unit digit of our solution is obtain by Q 3 = Q , from that we get unit digit same
First we can check for 0 , And get
0 3 = 0
Now we check that
20 23 = 460
or
30 33 = 990
Here we can't get 570 as given in our equation .
So now we check for Q = 5
So,
5 3 = 15
here we get unit digit of solution is same ( 5 )
So now we get
25 23 = 575
So ,
P = 2 And Q = 5 ( Ans )