Question

If abcd x 4 = dcba and a = 1/4 of d, a - b = 1 then find the reversible 4-digit number abcd. A) 218 b) 2178 c) 1718 d) 712

Answer 1

Answer:

Step-by-step explanation:

Consider option -b .

2178, is the revised number of 4d digit number.

Therefore, a=8,b=7,c=1,d=2.

Given that a -b=1 ... ,. 8-7=1.

a=(1/4)d,. 8=d/4..... d=2

Therefore given conditions are satisfied by the number that we r taken .....

There the revised number is 2178..