Hello experts,
What does it mean by increment number in this problem?
Pls explain
Increment number
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Since A,B,C,D and E are evenly spaced therefore[email protected] wrote:Hello experts,
What does it mean by increment number in this problem?
Pls explain
B-A = C-B = D-C = E-D
Since, Distance between E and C = 2 Spaces, therefore,
Every Space between any two consecutive Letters = (E-C)/2 = (9^13 - 9^11)/2
Every Space between any two consecutive Letters = (9^11)(9^2 - 1)/2
Every Space between any two consecutive Letters = (9^11)(80)/2 = 40 x (9^11)
Distance between A to D = 3 Spaces
i.e. Distance between A to D = 3 x 40 x (9^11) = 120 x (9^11)
Answer: Option E
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There are 3 spaces between A and D.
There are 2 spaces between C and E.
Thus:
AD/CE = 3/2
AD = (3/2)(CE).
CE = 9¹³ - 9¹¹ = (9¹¹)(9² - 1) = (9¹¹)(80).
Thus:
AD = (3/2)(CE) = (3/2)(9¹¹)(80) = (120)(9¹¹).
The correct answer is E.
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Here's a similar question to practice with: https://www.beatthegmat.com/challenge-2- ... 67201.html
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We can let the space between each pair of consecutive points = n.
Thus, the space from C to E is n + n = 2n. So, we can create the following equation:
9^11 + 2n = 9^13
2n = 9^13 - 9^11
2n = 9^11(9^2 - 1)
2n = 9^11(80)
n = 9^11(40)
Since the distance from A to D = 3n:
3n = 3(9^11)(40) = 120(9^11)
Answer: E
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