A) 10
B) 11
C) 12
D) 15
Correct Answer: A
Solution :
LCM of 2, 4, 6, 8 and 10 is 120. i.e., 2 min after tolling together. In 20 mm tolling \[\text{=}\frac{\text{20}\,\text{min}}{\text{2}\,\text{min}}\text{=10}\,\text{times}\]You need to login to perform this action.
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