Questions

If less work is involved in searching a element than to sort and then extract, then we don’t go for sort

If frequent use of the file is required for the purpose of retrieving specific element, it is more efficient to sort the file.

Thus it depends on situation

Weight is mass x g. Since mass is constant and g is only 16thof that on the earth. The weight on the moon is only 16th of that on the earth. 

Therefore 2N i.e (b) is the answer.

Any person can have only 1 birthday i.e, the day he was born. And every year we celebrate it's anniversaries.

Mango Cup is associated with Cricket game. The MANGO CUP is a Triangular Cricket limited overs tournament between the Manglorean CatholicAssociation of Sydney (MCAS), Australian Residents Anglo Indian Association (ARAIA) and GoanOverseas Association-NSW (GOA).

Hence, the tournament is named from both (Man) from Manglorean CatholicAssociation of Sydney and (go) from GoanOverseas Association-NSW.

The C.M of Kerala, Pinarayi Vijayan has recently launched e-health program “Jeevan Rekha” to make electronic health records of a population in Thiruvananthapuram.

It is a first-of-its-kind initiative in India to provide a centralised database of healthcare information and efficient service delivery to the people.

The new system would help in creating a good hospital management system and patient-friendly atmosphere in hospitals.

Once data of a patient is centralised, it would help the person get continuous treatment at all hospitals in the state.

ptr pointer is constant. In ptr = yourbuf the program is trying to modify it, hence an error.