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Question

The students who came to the institute to attend a lecture at 15 minutes past 12 found that they have come 25 minutes before the teacher, who in turn was late by 30 minutes to the class. At what time was the class supposed to start?

12 बजकर 15 मिनट पर एक लेक्चर अटेंड करने इंस्टीट्यूट आए कुछ विद्यार्थियों ने पाया कि वे शिक्षकों से 25 मिनट पहले आए हैं, जो स्वयं कक्षा में 30 मिनट की देरी से आए थे। कक्षा किस समय शुरू होनी चाहिए थी?

A
12:00 pm
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B
12:15 pm
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C
12:10 pm
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D
12:20 pm
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Solution

The correct option is C 12:10 pm
The students came to the institute to attend a lecture at 12:15 pm
As the students came 25 minutes before the teacher, the teacher must have arrived at 12:40 pm.
Now, the teacher was late to the class by 30 minutes.
Correct class timing = 12:40 – 30 = 12:10 pm.
Hence, option (c) is the correct answer.

कुछ विद्यार्थी 12:15 pm बजे एक लेक्चर अटेंड करने इंस्टीट्यूट आए।
चूंकि विद्यार्थी शिक्षकों से 25 मिनट पहले आए, अतः शिक्षक 12:40 pm बजे आए होंगे।
अब, शिक्षक कक्षा में 30 मिनट की देरी से आए।
कक्षा का सही समय = 12:40 - 30 = 12:10 pm बजे है।
अतः, विकल्प (c) सही उत्तर है।

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