A) 400
B) 480
C) 520
D) 600
Correct Answer: D
Solution :
Let the HCF be H. \[\therefore \] \[LCM=20\,\,H\] Then, \[H+20\,H=2520\] \[\Rightarrow \] \[21\,H=2520\] \[\Rightarrow \] \[H=\frac{2520}{21}=120\] \[\therefore \] \[LCM=20\,H=20\times 120\] \[=2400\] As, First number \[\times \] Second number \[=LCM\times HCF\] \[\Rightarrow \]\[480\times \text{Second number}\] \[=2400\times 120\] \[\Rightarrow \] Second number \[~=\frac{2400\times 120}{180}=600\]You need to login to perform this action.
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