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18 Jun 2021, 04:20
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Solution:
Let the first card drawn has n written in it and the next which is larger is n+1 with the product as n(n+1)
=>15<n(n+1)<200
Using the options-
A- If n = 3 then n(n+1) = 3*4=12 and 12<15 -Eliminate A and B with the same logic
C- If n=4, then n(n+1)=20 and 20>15 => The least value for n has to be 4 and not 5-Eliminate D and hold on to C
D-If n=14 then n(n+1) = 14*15 = 210 > 200(maximum value permitted) -Eliminate D-
(option c)
Devmitra Sen
GMAT SME
Let the first card drawn has n written in it and the next which is larger is n+1 with the product as n(n+1)
=>15<n(n+1)<200
Using the options-
A- If n = 3 then n(n+1) = 3*4=12 and 12<15 -Eliminate A and B with the same logic
C- If n=4, then n(n+1)=20 and 20>15 => The least value for n has to be 4 and not 5-Eliminate D and hold on to C
D-If n=14 then n(n+1) = 14*15 = 210 > 200(maximum value permitted) -Eliminate D-
(option c)
Devmitra Sen
GMAT SME
18 Jan 2022, 10:41
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19 Jan 2022, 00:35
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tkorzhan1995
Hi tkorzhan1995,
The prompt tells us that after drawing a card, you must multiply the number on the CARD by the NEXT LARGER integer... and end up with a number between 15 and 200.
IF the number on the CARD was 14, then we'd have…
14(15) = 210
This is clearly too big of a result, so the largest number on a card CANNOT be 14.
GMAT assassins aren't born, they're made,
Rich
