Question
A set contains ten numbers. The average of the first six numbers is (x − 1), and the average of the last three numbers is (x + 3). The average of the entire set is 'x'. If the 7th number of the set is 30, then find the value of 'x'.
More Average Questions
- The average of four numbers (z+16), (y+15), (y-25) and 1.2z is (y-6). If one more number which is 144 is added then the new average will be (y-1). The valu...
- Average of 20 numbers is 65. If the average of the first eight and last six numbers is 75.5 and 55.5 respectively, and if the twelfth number is 25% more th...
- In a class of 40 students, the average weight is 72 kg. One student of weight 68 kg left and three new students with an average weight of 75 kg joined the ...
- In a workshop with 20 participants, the average productivity score is 90. One person with a score of 85 leaves, and 3 new participants with an average scor...
- The average weight of 25 employees in an office increases by 0.8 kg when the weight of the manager is included. If earlier the average weight of the employ...
- Average weight of all the people in a group is 66 kg. When two people of weight 72 kg and 84 kg left the group, average weight reduces by 1.2 kg. Find the ...
- In an examination, the average marks obtained by the students is 60. After correcting the quantitative mistakes, the average of 100 students is reduced to ...
- The average of two consecutive even numbers is 73. If the smaller number is increased by 40% and the larger number is decreased by 40%, then find the diffe...
- A writer wrote a certain number of pages daily for the first 20 days. In the next 10 days, he wrote at an average of 54 pages per day. This increased his o...
- The average age of 6 sisters is 30 yr. If the age of the youngest sister be 5 yr. What was the average age of the group of sister just before the birth of ...
Hey! Ask a query
Please enter email id
The email must be a valid email address.
Please enter Mobile Number
Please enter valid Mobile Number
Please enter your Doubt
Think You're Ready for RBI Grade B?
RBI Grade B 2026 Phase 1 Memory Based Paper
- 200 Questions with Detailed Solutions
- Section-wise Coverage (GA, English, Quant & Reasoning)