Question
The average weight of a class of 25 student is 60 KG. If X is student joined the class, than the average weight of whole class increases by (2X – 7)Kg. Find the value of X if the weight of whole class increases by 390 KG.
More Arithmetic Progression Questions
- The sum of total surface area of two cubes is 1248-centimeter square. If the product of the length of their edges is 96 centimeter square. Find the differe...
- A man wants to invest Rs. 60660 in bank accounts of his two sons whose ages are 12 years and 16 years in such a way that they will get equal amount at an a...
- 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?
- What is the mean of the following numbers: 9, 15, 18, 12, 14, 20, 22, 16
- If 3, x, y, 48 are in GP and x, y, 45 in AP, find x and y.
- The sum of the first 10 terms of an arithmetic sequence is 60 and the 10th term is 5. What is the first term of the sequence?
- The expenditure-to-savings ratio of an individual 'P' is 5:4. If the person's income rises by 25% and their savings increase by 31.25%, what percentage inc...
- The marks obtained by 15 students out of a maximum of 25 in a test are given as 13, 11, 16, 15, 18, 12, 13, 14, 10, 22, 21, 20, 17, and 24. Find the sum of...
- The number of terms needed to get Sn = 0 in the A.P of 63, 60, 57. . . . .
- A shopkeeper sells a product for ₹720 at a profit of 20%. What was the cost price of the product?
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)