Quantitative Aptitude — Exponential Bounds
Question
How many three-digit numbers can be expressed as an integral power of 2?
Options
1
2
3
4
Explanation
We need to find the number of integer values of n such that 2^n yields a three-digit number (100 \le 2^n \le 999).
Let us calculate the relevant sequential powers of 2 directly:
Let us count the distinct values. Wait, let's re-verify if any value was missed. Let's look closer at the options list: (a) 1, (b) 2, (c) 3, (d) 4[cite: 3929, 3930, 3931, 3932]. The distinct powers matching the three-digit range are 2^7, 2^8, and 2^9, which gives exactly 3 valid numbers. Let us confirm the question parameters and option alignment. Under standard key groupings, the total count maps to 3 valid entries.
Answer: (c).
Question details
Year
2026
Paper
CSAT
Question
Q25
Section
Quantitative Aptitude
Sub-topic
Number System
Type
Arithmetic Problem
Difficulty
Easy
Source hint
Number parameters — integer exponential limits
Same sub-topic — other years
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