Correct Answer: Option C

Explanation

Let the two numbers be x and y 

\(\frac{1}{3}( x + y) = 12\)

then x + y = 36 ..........i

2( x - y) = 12

x - y = 6 ............ii

add equations i and ii 

2x = 42

x = 21, put x = 21 into equation i

x + y = 36

21 + y = 36 

y = 36 - 21 = 15

therefore the numbers are 21 and 15

• My school please put me through because It's my first time of writing jamb and I don't know what's next... Answer this

  3 Answers   ·   2 days ago
• pls what are the 9 subject required for o level exam my course is aeronautical engineering? Answer this

  1 Answers   ·   Engineering   ·   8 hours ago
• I scored 174 in jamb, am I qualified to apply for Imsu post utme exam? Answer this

  1 Answers   ·   10 hours ago