PRC-2 · Chapter 3 · Question 27 of 45
If the numbers 2, x, and 50 explicitly form a geometric progression, what are the possible mathematical values for 'x'?
Test yourself: pick an answer
Reveal answer & explanation
Correct answer: C) 10 or -10
Explanation
For three terms to form a geometric progression, the ratio must be constant: x/2 = 50/x. Cross-multiplying gives x^2 = 100. Taking the square root gives x = 10 or x = -10.
More Mathematical Progression MCQs
- Q29A worker saves Rs. 500 in month 1 and commits to increasing the savings by Rs. 200 every single month thereafter. What is the total…
- Q30Under what strict mathematical condition does an infinite geometric progression possess a calculable, finite sum?
- Q31In an Arithmetic Progression (AP), the difference between any two consecutive terms is always:
- Q32What is the standard formula for the n-th term (Tn) of an Arithmetic Progression?
- Q33In a Geometric Progression (GP), the ratio between any two consecutive terms is always: