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UPSC Prelims

Mathematics

Theme:

Speed, Time and Distance / गति, समय और दूरी

Q16 2019, Speed, Time and Distance

When a runner was crossing the 12 km mark in a race, she was told that she had completed only 80% of the race. What was the total distance of the race?

जब एक धाविका किसी दौड़ में 12 km दूरी दर्शाने वाले चिह्न को पार कर रही थी, तब उसे यह बताया गया कि उसने दौड़ का केवल 80% हिस्सा पूरा किया है। इस स्पर्धा में इस धाविका को कितने किलोमीटर दौड़ना था ?

Explanation Please wait..

• 12 km is 80% of the total race.

• => 12 km = 0.8 R => R = 12 / 0.8 = 15.

• So total race will be of 15 km.

व्याख्या Please wait..

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