Question: Which of the following is equal to the value of \(2^5+2^5+3^5+3^5+3^5 \)?
- \(5^6\)
- \(13^5\)
- \(2^6+3^6\)
- \(2^7+3^8\)
- \(4^5+9^5\)
Correct Answer: C
Solution and Explanation:
Approach Solution 1:
(2^5+2^5)+(3^5+3^5+3^5)
=2∗2^5+3∗3^5 (We have two 2^5 so you club them as 2*2^5. Similarly for 3)
=2^6+3^6
Approach Solution 2:
Given: 2^5 + 2^5 + 3^5 + 3^5 + 3^5
Notice that this expression has the same STRUCTURE as x + x + y + y + y
Simplifying, we get: x + x + y + y + y = 2x + 3y
LIKEWISE, 2^5 + 2^5 + 3^5 + 3^5 + 3^5 = 2(2^5) + 3(3^5)
= (2^1)(2^5) + (3^1)(3^5)
= 2^6 + 3^6
Approach Solution 3:
Simplifying, we get:
2^5(1 + 1) + 3^5(1 + 1 + 1)
2^5 x 2^1 + 3^5 + 3^1
2^6 + 3^6
“Which of the following is equal to the value of 2^5+2^5+3^5+3^5+3^5?”- is a topic of the GMAT Quantitative reasoning section of GMAT. To solve GMAT Problem Solving questions a student must have knowledge about a good amount of qualitative skills. GMAT Quant practice papers improve the mathematical knowledge of the candidates as it represents multiple sorts of quantitative problems.
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