1 Crore+ students have signed up on EduRev. Have you? 
How many times between 4 am and 5 am the minute and hour hand of a clock will be at right angle?
When the time by the watch is 20 minutes past 7. What is the angle between the hand of the watch?
Required angle = 15 × 6 + 20 × 1/2
= 90 + 10 = 100°
Smt Indira Gandhi died on 31st October 198 4. What was the day of the week?
1600 years contain 0 odd days. 300 years contain 1 odd day. 83 years contain 20 leap years & 63 ordinary years.
∴ 40 odd days = 5 odd days.
1983 year contains 0 + 1 + 5 = 6 odd days.
Number of days from Jan 1984 to 31st October 1984 = 31 + 29 + 31 + 30 + 31 + 30 + 31 +
30 + 31 = 305 days
In 305 days, there are 4 odd days otal no. of odd days = 6 + 4
= 10 odd days
= 3 odd days.
So, 31st October was Wednesday.
Nilesh’s position is 11th from the top and thirty one from the bottom in a class. How many students are there in the class?
Total no. of students = 11 + 31 – 1 = 41
How many even numbers are there in the given sequence of number which are immediately followed by an odd number as well as immediately preceded by an even number?
8 6 7 6 8 9 3 2 7 5 3 4 2 2 3 5 5 2 2 8 1 1 9
There are 4 such even numbers.
Raju is 5th from the left and Pankaj is 12th from the right end in a row of students. If Pankaj shifts three places towards Raju, his position is 10th from the left. How many students are there in the row?
When Pankaj shifts 3 places towards Raju his position is 15th from right and 10th from left.
∴ No. of students = 15 + 10 – 1 = 24 students.
In a particular year 1st November is Wednesday what day was 1st October in that year?
1^{st }November is Wednesday.
31^{st} October is Tuesday.
29^{th}, 22^{th}, 15^{th}, 8^{th}, 1^{st }October was Sunday.
Some students stand in a row. Manish’s position is 19th from both the ends. How many students are there in that row?
Manish’s position is 19th from both the ends. Total no. of students = 19 + 19 – 1 = 38 – 1 = 37
Navin ranks 18th in a class of 49 students. What is his rank from the last?
Here 49 – 18 = 31
Navin’s rank from last = 32nd
The position of how many digits in the number 321465987 will remain same when the digits are arranged in ascending order?
How many numbers amongst the number 9 to 81 are there which are divisible by 9 but not by 3?
There are no such number which is divisible by 9 but not by 3.
If Aman find that he is 12th from the right in a line of boys and 4th from the left. How many boys should be added to the line such that there are 28 boys in the line?
12 + 4 – 1 = 15
Number of boys to be added = 28 – 15 = 13
If the 25th of August in a year is Thursday, the number of Mondays in that month is
25^{th} August is Thursday. 29^{th} August is Monday. Then 29^{th}, 22^{th}, 15^{th}, 8^{th}, 1^{st} days are Monday. So, there are 5 Monday in that month.
Which two months in a year have the same calendar?
April and July have the same calendar.
The number of odd days in a leap year is
A leap year has 366 days.
366 days = 52 weeks + 2 days
No. of odd days in a leap year = 2
13 docs50 tests

Use Code STAYHOME200 and get INR 200 additional OFF

Use Coupon Code 
13 docs50 tests








