Question:hard

DIRECTIONS for questions 78 to 81: Read the data below and choose the correct option for the questions that follow.

Queen Airlines offers the following Privilege programme: there are 5 membership tiers, each with its own set of enhanced tier-specific benefits. New members join at the Blue tier, then upgrade to Blue Plus, which adds the benefit of Tele check-in. The programme also has three elite tiers, Silver, Gold and Platinum. The 6-month fast-track upgrade and the 12-month standard upgrade system work in parallel: whenever a passenger meets the condition for the next tier, either in terms of the number of flights taken in the stipulated period or in terms of accumulated Queen-Miles, in either of the two systems, the passenger is automatically upgraded to the next tier. The 6-month system looks at a rolling 6-month period, and the 12-month system looks at a rolling 12-month period. If conditions for more than one upgrade are met at the same time, the passenger is given the higher of the two tiers.

Tier Upgrade6-month Fast Track Upgrade System
(Cumulative flights / Cumulative Queen-Miles)		12-month Standard Upgrade System
(Cumulative flights / Cumulative Queen-Miles)
Blue to Blue Plus3 / 3,000Not Applicable
Blue Plus to SilverNot Applicable5 / 12,500
Silver to Gold5 / 12,50010 / 20,000
Gold to Platinum10 / 20,00020 / 30,000

Benefits and Privileges

BlueBlue PlusSilverGoldPlatinum
Tele Check-in✓✓✓✓
Additional baggage allowance10 kgs20 kgs35 kgs
Confirmed upgrade vouchers135
Guaranteed reservations upto 24 hours prior to departure✓✓
Cancellation fees waived on published fares✓

Distances between cities in Queen-miles

DelhiKolkataMumbaiHyderabadBangaloreCoimbatoreGuwahati
Kolkata1461
Mumbai14071987
Hyderabad14991516711
Bangalore20611881998562
Coimbatore240121671265902340
Guwahati195910812746237029323209
Chennai2095167613296883314912718

Mr Kakkar, a newly recruited MBA from a business school, started his career at the start of 2007. His travel plan for 2007 is given below.

DateFromTo
2.1.2007MumbaiHyderabad
8.1.2007HyderabadMumbai
3.2.2007MumbaiDelhi
8.3.2007DelhiGuwahati
20.3.2007GuwahatiKolkata
11.4.2007KolkataGuwahati
30.4.2007GuwahatiChennai
4.7.2007ChennaiGuwahati
20.7.2007GuwahatiKolkata
2.9.2007KolkataHyderabad
11.9.2007HyderabadGuwahati
22.9.2007GuwahatiDelhi
1.10.2007ChennaiBangalore
11.10.2007GuwahatiChennai
4.11.2007ChennaiDelhi
29.11.2007DelhiHyderabad
1.12.2007HyderabadGuwahati
31.12.2007GuwahatiMumbai

The difference in complete calendar months, discounting any partial months, between the first tier upgrade and the last tier upgrade for Mr Kakkar is:

Show Hint

Find the exact date of the first upgrade (Blue to Blue Plus) and the last upgrade (Gold to Platinum), then count only the whole calendar months that lie strictly between the two dates.
Updated On: Jul 13, 2026
  • 7
  • 8
  • 9
  • 10
Show Solution

The Correct Option is B

Solution and Explanation

This question wants the number of whole calendar months that separate Kakkar's first upgrade from his last upgrade, not counting the two months in which the upgrades themselves fall.

First upgrade: Blue to Blue Plus. He needs 3 flights on the 6-month fast track, and his 3rd flight (Mumbai to Delhi) lands on 3 February 2007. So the first upgrade date is 3 February 2007.

Last upgrade: Gold to Platinum. Following the same flight-by-flight count used in question 79, his 10th flight as a Gold member (Chennai to Delhi) lands on 4 November 2007, clearing the 10-flight condition for Platinum. So the last upgrade date is 4 November 2007.

Now count only the calendar months completely enclosed between 3 February and 4 November:

  • February is not complete, it only runs from the 3rd onward, so it is dropped.
  • November is not complete either, it only runs up to the 4th, so it is dropped too.
  • What remains, fully inside this window, is March, April, May, June, July, August, September and October.

That is 8 full calendar months.

So the difference between Kakkar's first tier upgrade and his last tier upgrade, in complete calendar months, is 8.

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