UPSC Prelims 2026 · CSAT Paper 2 · Set DMathematicsQ 60 / 80

UPSC Prelims 2026 CSAT Paper 2 — Question 60

Question

A shopkeeper employs a delivery boy and gives him a motorcycle for home delivery. For every delivery, the boy is given ₹5. At the end of the day, he also gets ₹2 for every kilometre of the distance covered in the day. The boy wants to earn more than ₹500 a day, but does not want to travel more than 100 km. Which of the following numbers of deliveries would definitely meet his target?

(a)80
(b)85
(c)90
(d)The question cannot be answered due to insufficient data

UnlockIAS answer: (d)The question cannot be answered due to insufficient data

Solution

Earnings = 5 × (deliveries) + 2 × (km). With no fixed relationship between deliveries and distance covered, no delivery count "definitely" guarantees more than ₹500 — the data is insufficient.

UnlockIAS expert key, prepared 24 May 2026 and cross-verified by re-deriving the answer — this is our key, not the official UPSC provisional key (awaited).

Section

Mathematics

Topic Reference

Numeracy — Data sufficiency in earnings

Official UPSC key still awaited

UPSC has announced (PIB Release 2262441, 18 May 2026) that the provisional answer key for CSE Prelims 2026 will be released “soon after Exam”. Until then, use the CSAT score calculator for your qualifying-status estimate, and join the per-question discussion below.

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Official Notification

PIB Release 2262441

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