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UPSC Prelims

Mathematics

Theme:

Time and Work / समय और कार्य

Q68 2018, Time and Work

A lift has the capacity of 18 adults or 30 children. How many children can board the lift with 12 adults?

एक लिफ्ट में 18 वयस्क या 30 बच्चों को ले जाने की क्षमता है। लिफ्ट में 12 वयस्कों के साथ कितने बच्चे आ सकते हैं?

Explanation Please wait..

Given, 18 adults = 30 children

1 adult = 30/18 children

So, with 12 adults, 6 more adults can board the lift.

Thus, 12 + 6 (30/18) = 22 total people.

So, out of 22 people, 10 are children.

व्याख्या Please wait..

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