Question
The mean of 10 observations is 8. One more observation is added, and the new mean becomes 9. What is the value of the 11th observation?
More Arithmetic Progression Questions
- 3600, 600, 120, 30, 10, ?
- A boat takes 17 hours to travel from P to Q upstream and from Q to P downstream. If the speed of the boat in still water is 8.5 km/h and the speed of the c...
- The areas of three adjacent faces of a cuboid are 32 cm2,24cm2 and 48cm2.Find the volume of cuboid.(in cm) 3
- If the median and mode of a data set are 6 and 12 respectively, then find the mean of the data.
- Calculate the mean of these values: 25, 30, 28, 27, 29, 26, 32, 31
- The fourth term of an arithmetic progression is 6. Then the sum of first seven terms is:
- a, b, c in GP; a + b + c = 21, abc = 216. Find numbers.
- In a geometric progression, the first term is 4 and the common ratio is 2. If the sum of the first n terms is 252, what is the value of n?
- What will be the mode of the following data? 13, 15, 31, 12, 27, 13, 27, 30, 27, 28 and 16
- In an arithmetic progression (AP), the first term is 7, the common difference is 4, and the last term is 55. How many terms are there in the AP?
Relevant for Exams:
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)