Question

1.
2.
3.
4.
Answer (Detailed Solution Below)

Option 3 : 2023, by 490 thousand

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Detailed Solution

सही उत्तर 2023, by 490 thousand है।

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Question:

The table below shows subscribers (in thousands) of four plans of a cyber-security training portal; figures in each row are for 2021, 2022 and 2023 in that order.

Plan Alpha : 480, 560, 620 Plan Beta : 350, 420, 455 Plan Gamma : 220, 260, 390 Plan Delta : 150, 180, 225 In which year was the total number of subscribers highest, and by how much did it exceed the lowest year's total? / नीचे तालिका में एक साइबर-सुरक्षा प्रशिक्षण पोर्टल की चार योजनाओं के ग्राहक (हज़ार में) दिए गए हैं; प्रत्येक पंक्ति के आंकड़े क्रमशः 2021, 2022 और 2023 के हैं।

Plan Alpha : 480, 560, 620 Plan Beta : 350, 420, 455 Plan Gamma : 220, 260, 390 Plan Delta : 150, 180, 225 किस वर्ष कुल ग्राहकों की संख्या सबसे अधिक थी और वह सबसे कम वर्ष के कुल से कितनी अधिक थी?

1.
2023, by 470 thousand
2.
2022, by 220 thousand
3.
2023, by 490 thousand
4.
2023, by 500 thousand

Correct Answer: 2023, by 490 thousand

Totals: 2021 $= 480+350+220+150 = 1200$; 2022 $= 560+420+260+180 = 1420$; 2023 $= 620+455+390+225 = 1690$. Highest is 2023, exceeding the lowest (2021) by $1690-1200 = 490$ thousand. / योग: 1200, 1420, 1690; अतः 2023 सबसे अधिक, अंतर $490$ हज़ार। Option (a) is the trap from mis-adding the 2023 column as 1670.

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