CTET 2 Math and Science Nov 2012 Paper

Question : 60 of 120

Marks: +1, -0

Sum of HCF and LCM of 4, 20 and 28 is

Solution:

LCM 4, 20 and

28=4×5×7=140

HCF of 4, 20, 28 is 4
Sum of LCM and HCF

=140+4=144

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