L&T Company Programming Database

Which of the following operations is performed more efficiently by doubly linked list than by singly linked list?
A)Deleting a node whose location is given B)Searching of an unsorted list for a given item C)Inverting a node after the node with given location D)Traversing a list to process each node

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L&T Other Question

The average age of a cricket team of 11 members is 26 years. The wicket keeper is 3 years older than the captain. If the ages of these two are excluded, the average age of the remaining players is one year less than the average age of the whole team. What is the age of the wicket keeper ?
A. 29 years B. 26 years C. 32 years D. None of these
Excluding stoppages, the speed of a bus is 70 kmph and including stoppages, it is 60 kmph. For how many minutes does the bus stop per hour?
A.12 B.10 C.15 D.20