Question
What will be the angle formed between the hour needle
and minute needle of a clock at 3hrs 36min in clock wise direction from hour hand?Solution
Formula to find the angle between hour hand and minute hand is: Angle = | (11 ˣ minutes - 60 ˣ hours)/2 | Here, minutes = 36, hours = 3 Angle = | (11 ˣ 36 - 60 ˣ 3)/2 |° Angle = | (396 - 180)/2 |° Angle = 216/2 = 108°
5 positive numbers are written on a piece of paper. Sum of first 3 numbers is 50 and ratio of the 4th and the 5th number is 2:3. If difference between t...
Average age of A, B and C is 20 years. Average age of B and C was 12 years when A was born. If B is 21 years old, then, find the age of C, 6 years hence.
The average number of books on history, polity and geography in a library is 110, and the average number of books on history and geography is 120. If th...
- There are three numbers 'a', 'b' and 'c' such that average of 'a' and 'b' is 19, average of 'b' and 'c' is 23 and average of 'a' and 'c' is 18. Find the av...
- The average of the present age of 'S' and 'T' is 40 years. If the ratio of the age of 'S' 5 years ago to the age of 'T' 5 years hence is 3:5, then find the...
The average of two numbers ‘P’ and ‘Q’ is 480 such that they are in the ratio 5:7 respectively. Another number ‘R’ is 60 more than ‘Q’ a...
- Three numbers are given such that when the average of any two numbers is added to the third number, the resulting sums are 250, 240, and 230. Determine the...
The average score of 28 players in a team is 73. After two new players with scores (x + 8) and (x - 6) joined, the average score decreased by 2 points. ...
In an examination, the average marks obtained by the students is 40. After correcting the quantitative mistakes, the average of 60 students is reduced ...
In a family of 10, the men eat on average 65 kg of food and women eat on an average 45 kg of food. The men and women are equal in number. A woman...
Relevant for Exams:
