TCS Company Verbal Ability Synonyms

He denied to help me.
(1) disagreed
(2) refused
(3) objected
(4) No improvement

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TCS Other Question

There is a circle which circumscribes three unit circles which are tangential to each other. What is the circumference of the bigger circle?
9. The traffic lights at three different road crossing change after every 48 sec; 72 sec; and 108 sec., respectively. If they all change simultaneously at 8:20:00 hrs, then they will again change simultaneously at
a. 8:27:12 Hrs
b. 8:27:24 Hrs
c. 8:27:36 Hrs
d. 8:27:48 Hrs