Q1. If Arun’s birthday is on May 25 which is Monday and his sister’s birthday is on July 13. Which day of the week is his sister’s birthday?
A. Monday
B. Wednesday
C. Thursday
D. Friday
Answer: A
Elplanation:
Reference day : May 25th Monday
Days from May 25th to July 13 = 6 + 30 + 13 = 49
No of Odd Days : [latex] \frac {49}{7}[/latex] = 0
Q2. March 1st is Wednesday. Which month of the same year starts with the same day?
A. October
B. November
C. December
D. None of these
Answer: B
Elplanation:
Month: |
Mar |
April |
May |
June |
July |
Aug |
Sep. |
Oct. |
Odd Days: |
3 |
2 |
3 |
2 |
3 |
3 |
2 |
3 |
Total 21 odd days. [latex] \frac {21}{7}[/latex] = 0. So November has start with the same day.
Q3. How many times does the 29th days of the month occur in 400 consecutive years
A. 97 times
B. 4400 times
C. 4497 times
D. none
Answer: C
Elplanation:
In 400 consecutive years there are 97 leap years. Hence in 400 consecutive years, February has the 29th day 97 times, and the remaining 11 months have the 29th day 400 x 11 or 4400 times.
Therefore, 29th day of the month occurs (4400 + 97) or 4497 times
Q4. Given that on 10th November 1981 is Tuesday, what was the day on 10th November 1581
A. Monday
B. Thursday
C. Sunday
D. Tuesday
Answer: D
Elplanation:
After every 400 years, the same day comes.
Thus if 10th November1981 was Tuesday, before 400 years i.e on 10th November 1581, it has to be Tuesday.
Q5. The angle bounded by the hands of a clock at 3:30 is
A. 60°
B. 45°
C. 75°
D. 90°
Answer: C
Elplanation:
Required angle = [latex]{90}^{0} - 30 \times \frac {1}{{2}^{0}}[/latex]