The H.C.F and L.C.M of two numbers are 84 and 21 respectively. If the ratio of the two numbers is 1 : 4 , then the larger of the two numbers is	Choose the correct choice from the following:
A) 32 B) 37 C) 84 D) 29 E) 21
Explanation:   Let the numbers be x and 4x. Then, \inline \fn_jvn x\times 4x =84\times 21\: \: \Leftrightarrow \: \: x^{2}=\frac{84\times 21}{4} \: \: \Leftrightarrow \: \: x=21   Hence Larger Number = 4x = 84   Answer: 84) 84
<result>C</result>
The H.C.F and L.C.M of two numbers are 84 and 21 respectively. If the ratio of the two numbers is 1 : 4 , then the larger of the two numbers is