Q 48. Time Sequence Test
Which day is 10 October, 2027?
- We know CSE 2021 was held on 10th October 2021, i.e., Sunday.
- For same day next year we add 1 to the day of the week, i.e., Sunday+1= Monday.
- For leap year we add 2.
- Now for 10 October, 2027 we add 1+1+2+1+1+1= 7.
- So, Sunday+7= Sunday, i.e., 10th October 2027 will also be a Sunday.
Q 75. Time Sequence Test
Joseph visits the club on every 5th day, Harsh visits on every 24th day, while Sumit visits on every 9th day. If all three of them met at the club on a Sunday, then on which day will all three of them meet again?
- The next time they will meet again will be the LCM of these time-periods. LCM (5, 24, 9) = 360.
- So, all the three will meet 360 days after Sunday.
- Now, we need not count 360 days. Rather we will use the concept of odd days.
- Odd number of days in 360 = Remainder when 360 is divided by 7 = 3.
- So, they will meet again on Sunday + 3 = Wednesday.
Q 12. Time Sequence Test
Mr 'X' has three children. The birthday of the first child falls on the 5th Monday of April, that of the second one falls on the 5th Thursday of November. On which day is the birthday of his third child, which falls on 20th December?
• November is a 30-day month. In a 30-day month, all the seven days of week occur 4 times (7 × 4 = 28) and two days of the week occur 5 times.
• These two days will be the first two or the last two days of the month. It means if a certain day is occurring 5 times in a month, it must be on those first two or last two days.
• Now the second child’s birthday is on the fifth Thursday, so it has to be in the end of November.
• That means either 29 November is Thursday or 30 November is Thursday.
• If 29 November is Thursday then, December 20 will be a Thursday.
• If 30 November is Thursday then, December 20 will be Wednesday. This is not given in the options. Hence, answer has to a Thursday.
Q 35. Time Sequence Test
Seeta and Geeta go for a swim after a gap of every 2 days and every 3 days respectively. If on 1 ^ (st) January both of them went for a swim together, when will they go together next?
• Seeta goes to swim every 3rd day and Geeta goes to swim every 4th day.
• They will go to swim together every 12th day (LCM of 3 and 4 is 12).
• So, on the 12th day after January 1, they will go together to swim i.e., on January 13.
Q 11. Time Sequence Test
If second and fourth Saturdays and all the Sundays are taken as only holidays for an office, what would be the minimum number of possible working days of any month of any year?
- Since minimum number of working days is asked, start with the smallest month possible.
- That would be a February in a non-leap year with 28 days in all.
- So the first day be Sunday, then the 8th, 15th and 22nd will be Sundays as well.
- For the second and fourth Saturdays, we will have only 14th and 28th.
- Hence total holidays will be 4 + 2 = 6. Working days = 22.
Q 76. Time Sequence Test
If the 3rd day of a month is Monday, which one of the following will be the fifth day from 21st of this month?
3rd day of the month = Monday
⸫ 10th 17th and 24th day will also be Monday as Monday repeats after 7 days.
24th → Monday. i.e. 3rd day from 21st
⸫ 5th day from 21st
] Monday + 2 = Wednesday
Hence, option (c) is correct.