CTET PAPER II 2019 · PYQ · Time Zones / Geography · medium
Assertion (A): It will be 7:30 p.m. in India, when it is 2:00 p.m. in London. Reason (R): India is located east of Greenwich at 82°30′E.
A.(A) is true, but (R) is false.
B.(A) is false, but (R) is true.
C.Both (A) and (R) are true and (R) is the correct explanation of (A).✓ Correct
D.Both (A) and (R) are true, but (R) is not a correct explanation of (A).
Explanation
Indian Standard Time (IST) is based on the 82°30′E meridian, which passes through Mirzapur near Allahabad. Since India is east of Greenwich (0°), the time in India is ahead of GMT. The time difference is calculated as 82.5° × 4 minutes/degree = 330 minutes = 5 hours 30 minutes. So when it is 2:00 p.m. in London, it is 2:00 + 5:30 = 7:30 p.m. in India. Both (A) and (R) are true, and (R) correctly explains (A).
💡 Practice unlimited CTET PAPER II PYQs + AI-tracked progress on each topic. Sign up free →