Two positive whole numbers are such that the sum of the first number and twice the second number is 8 and their difference is 2. The numbers are :
Options:
A . 4,2
B . 7,5
C . 6,4
D . 3,5
Answer: Option A Answer: (a)Let the numbers be x and y. According to the question, x + 2y = 8 .... (i) x – y = 2 ....... (ii) By equation (i) – (ii), 2y + y = 8 – 23y = 6; y = 2 From equation (ii), x – 2 = 2 ; x = 4
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