send mail to support@abhimanu.com mentioning your email id and mobileno registered with us! if details not recieved
Resend Opt after 60 Sec.
By Loging in you agree to Terms of Services and Privacy Policy
Claim your free MCQ
Please specify
Sorry for the inconvenience but we’re performing some maintenance at the moment. Website can be slow during this phase..
Please verify your mobile number
Login not allowed, Please logout from existing browser
Please update your name
Subscribe to Notifications
Stay updated with the latest Current affairs and other important updates regarding video Lectures, Test Schedules, live sessions etc..
Your Free user account at abhipedia has been created.
Remember, success is a journey, not a destination. Stay motivated and keep moving forward!
Refer & Earn
Enquire Now
My Abhipedia Earning
Kindly Login to view your earning
Support
Type your modal answer and submitt for approval
The average of five numbers, given in a particular order, is 32. The average of the first three numbers is 28, while that of the last
three numbers is 34. What is the average of the first two numbers?
29
30
27
28
- We have five numbers with an average of 32, so their sum is 5×32=160.
- The sum of the first three numbers, with an average of 28, is 3×28=84.
- The sum of the last three numbers, with an average of 34, is 3×34=102.
- The sum of all five numbers is 160, and the overlapping middle number is counted twice in the sums of the first and last three numbers.
- Subtract the sum of the first three from the total, overlap, and the sum of the last three to find it: 84+102−160=26.
- The sum of the overlapping middle number is 26, so remove it from either the first or last three numbers to find the sum of the remaining two numbers.
- The sum of the first two numbers is 84−26=58.
- Thus, the average of the first two numbers is 58/2=29.
- Answer: Option:1 - 29.
“”
Report error
Access to prime resources