In some code, letters, a, b, c, d and e represent numbers 2, 4, 5, 6 and 10. However, we don’t know which letter represent which number.
Consider the following relationships:
i. a + c = e
ii. b – d = d
iii. e + a = b Choose one:
A) b = 4, d = 2 B) a = 4, e = 6 C) b = 6, e = 2 D) a = 4, c = 6 E) None
Explanation :   From the given equations, we see that , b=10 and d=5.   Now 'a' and 'c' must be 4 and 2 respectively.   So, e = 6.   Answer : a = 4, e = 6
<result>B</result>
In some code, letters, a, b, c, d and e represent numbers 2, 4, 5, 6 and 10. However, we don’t know which letter represent which number.
Consider the following relationships:
i. a + c = e
ii. b – d = d
iii. e + a = b