+164 There are two number A and B. A is a 2-digit number which is a multiple of 8. B is a 2-digit number which is a multiple of 20. What is the largest possible difference between the two numbers A and B?
+591 The largest possible difference is 12x8-1x20=96-20=76, not 4x20-2x8=64, which is less than 76.
+318 Smallest A --> 8 * 2 = 16
Largest A --> 8 * 12 = 96
Smallest B --> 20 * 1 = 20
Largest B --> 20 * 4 = 80
Difference between Largest A and Smallest B
= 96 - 20
= 76
Difference between Largest B and Smallest A
= 80 - 16
= 64
Largest possible difference = 76.
