A rectangular courtyard, the sides of which are in the ratio of 4:3, cost Rs.600 for paving at 50 p per m2; find the length of the diagonal of the courtyard?  Choose one
A) 87  B) 92  C) 12  D) 10  E) 11
Explanation:   1 m2 ---- 1/2   ? ----- 600 =&gt; 1200 m2   4x * 3x = 1200 =&gt; x = 10   Answer: Option 10
<result>D</result>
A rectangular courtyard, the sides of which are in the ratio of 4:3, cost Rs.600 for paving at 50 p per m2; find the length of the diagonal of the courtyard?