LCM of 0.12, 0.15, 0.2 and 0.54?

• A. 9.2
• B. 5.4
• C. 7.8
• D. 2.8

Answer: (B)

Make the number of decimal places in all the given numbers the same i.e., 0.12, 0.15, 0.2 and 0.54LCM of 12, 15, 20 and 542|12   15   20   542|6     15    10  273|3     15    5    275|1      5     5     9    1      1      1    9LCM=22×3×5×9=540                           LCM=540/10                                   =5.4