Question
If AB is a chord of a circle with radius 5 units and C
is a point on the circle such that ∠ACB = π/2, then the length of chord AB is:Solution
The correct answer is C
If the average of s number is r⁴ and the average r number is s⁴, then find the average of all r+ s numbers
There are 15 numbers such that average of first 12 numbers is 30 while the average of last five numbers is 48. Find the 12th number, if the ratio betwee...
There are three categories of jobs HR, CA and PA. The average salary of the student who got the job of HR and CA category is 20 lakhs per annum. The ave...
In a class of 30 students, the average age each student of the class is 21 years. 4 more students join the class such that the average age of the class ...
The average weight of a group of NN children is (N+1)(N + 1) kg. When a child weighing 36.5 kg leaves the group, the average weight decreases by 0.5 kg....
In an examination, the average marks obtained by the students is 40. After correcting the quantitative mistakes, the average of 50 students is reduced t...
Anish and Ajay are business partners. Three years ago, their average age was 18 years. Vikas has recently joined them and now the average age of three p...
The average age of three children is 20 years. If their ages are in the ratio 4:5:6. Find the age of the youngest child.
- A set of 50 observations has an average of 63. Find the new average when each observation is increased 8 times.
The average marks scored by 32 boys and 38 girls are 70 and 92 respectively. Find the average marks scored by all the students together. (Answer should ...
Relevant for Exams:
