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Agniveer Army CEE Scheduling / Day-Month Puzzle

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This page covers Agniveer Army CEE Scheduling / Day-Month Puzzle with complete concept notes, 6 graded practice MCQs, key points and exam-specific tips. Free to study.

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Concept Notes

Scheduling / Day-Month Puzzle— Rules & Concept

Core ConceptRead this first — the foundation of the topic

Scheduling/Day-Month puzzles are arrangement problems where you place people or items in specific time slots. These puzzles test your logical thinking and data organization skills. You get clues about who meets whom on which day or month, then arrange them correctly.

Key RulesCore rules you must know cold
Three Main Types

1) Day-wise scheduling (7 days of week), 2) Month-wise scheduling (12 months), 3) Date-wise scheduling (1-31 dates). Each type follows similar solving patterns but has different reference points

Formula for Gap Calculation

If X meets 'n' days after Y, and Y is on day 'd', then X is on day 'd+n'. For circular arrangements (like days of week), use modulo 7. If result exceeds 7, subtract 7.

Exam PatternsWhat examiners ask — read before attempting PYQs

SSC CGL typically asks 2-3 questions from scheduling puzzles. Common formats include 'On which day does X meet?', 'Who meets on Friday?', 'How many people meet between A and B?'. Most puzzles involve 6-8 people and 6-8 time slots. Powerful Shortcut: Create a possibility chart. List all people vertically and all days/months horizontally.

Mark 'YES' for confirmed positions and 'NO' for impossible ones. This visual method prevents confusion and speeds up solving.

Worked ExampleSolve this step-by-step before moving on
1
Step 1

Place direct clues. B = Wednesday, E = Sunday (last day).

2
Step 2

F meets immediately before B, so F = Tuesday.

3
Step 3

From condition 1, if C = Monday, then A = Wednesday. But B is already on Wednesday. So C cannot be Monday.

4
Step 4

If C = Thursday, then A = Saturday. Check condition 3: D must be between C and A, so D = Friday. This works!

5
Step 5

Remaining person goes to remaining day. So the arrangement is: Monday = (remaining), Tuesday = F, Wednesday = B, Thursday = C, Friday = D, Saturday = A, Sunday = E. Worked Example 2: Four people meet in different months. P meets in April. Q meets two months before R. S meets in the month having 30 days, immediately after R.

1
Step 1

P = April (given).

2
Step 2

Since S meets immediately after R, and S meets in a 30-day month, possible months for S are April, June, September, November.

3
Step 3

S cannot be April (P is there). If S = June, then R = May. Check: Q meets two months before R means Q = March. This works!

4
Step 4

Final arrangement: Q = March, P = April, R = May, S = June. Top

ShortcutsUse these to save 30–60 seconds per question

(1) Always solve step-by-step, don't jump to conclusions. (2) Use the 'assume and check' method when stuck. (3) Remember months with 30 days: April, June, September, November. Most

Exam TrapsCommon mistakes students make — avoid these

Students confuse 'after' and 'before'. If A meets 2 days after B, it means A's day comes later than B's day. Many students reverse this relationship.

Always draw a timeline to avoid confusion. Another frequent error is miscounting gaps. 'Two days after Monday' means Wednesday, not Tuesday. Count carefully: Monday (start) → Tuesday (1 day after) → Wednesday (2 days after).

Key Points to Remember

  • Read all conditions first before attempting to place anyone
  • Use elimination method - mark impossible positions with 'NO'
  • Formula: If X is 'n' days after Y on day 'd', then X is on day 'd+n'
  • Create possibility charts with people vs days/months grid
  • Direct clues (A meets Monday) are easier than indirect clues (A meets after B)
  • For circular weeks, use modulo 7 for date calculations
  • Months with 30 days: April, June, September, November
  • Count gaps carefully - 'two days after Monday' means Wednesday
  • Use assume-and-check method when multiple possibilities exist
  • Always verify final arrangement satisfies all given conditions

Exam-Specific Tips

  • Months with 31 days: January, March, May, July, August, October, December
  • Months with 30 days: April, June, September, November
  • February has 28 days in normal year, 29 days in leap year
  • Days of week cycle: Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday
  • First quarter months: January, February, March
  • Second quarter months: April, May, June
  • SSC CGL typically includes 2-3 scheduling puzzle questions per paper
  • Most common puzzle size involves 6-8 people and 6-8 time slots
Practice MCQs

Scheduling / Day-Month Puzzle — Practice Questions

6graded MCQs · easy to hard · full solution & trap analysis

All MCQs →
Practice 1easy

If today is Thursday and an event is scheduled 15 days from today, on which day of the week will the event occur?

Practice 2easy

A training program starts on the 8th of a month and lasts for 23 days. On which date will the program end?

Practice 3medium

Ravi's birthday falls on the 15th of a month. If the 1st of that month is a Wednesday, then on which day of the week does Ravi's birthday fall?

Practice 4medium

A school schedules exams on specific days. Mathematics exam is on the 8th, English is 5 days after Mathematics, and Science is 3 days before English. If the 8th falls on a Monday, on which day does Science exam occur?

Practice 5medium

In a month, an event is scheduled on the 3rd, 10th, 17th, and 24th. If the 3rd is a Tuesday, on which day of the week is the event on the 24th?

Practice 6hard

A training schedule begins on a Wednesday. If trainees must complete 45 days of training with no breaks, on which day of the week will the training end?

60-Second Revision — Scheduling / Day-Month Puzzle

  • Remember: Read all conditions before solving, mark direct clues first
  • Formula: Gap counting - 'n days after day d' means day 'd+n'
  • Trap: Don't confuse 'after' and 'before' relationships
  • Method: Use possibility chart with YES/NO marking system
  • Shortcut: Months with 30 days are April, June, September, November
  • Verify: Always check final answer satisfies all given conditions
  • Count carefully: 'Two days after Monday' is Wednesday, not Tuesday
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