When it is noon at IST meridian, people at another place of the earth are taking 6O'clock morning tea. The longitude of this place is

When it is noon at IST meridian, people at another place of the earth

1.	When it is noon at IST meridian, people at another place of the earth are taking 6O'clock morning tea. The longitude of this place is
A.	\[{{17}^{o}}{{30}^{o}}E\]
B.	\[{{7}^{o}}{{30}^{o}}W\]
C.	\[{{172}^{o}}{{30}^{o}}E\]
D.	\[{{90}^{o}}W\]
Answer» C. \[{{172}^{o}}{{30}^{o}}E\]