Gmat Prep Interest Rate...
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Source: Beat The GMAT — Data Sufficiency |
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codesnooker
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Okay the simplest trick to solve this question is to determine the boundary value. i.e. what would be the interest amount at 8% rate of interest.
If you compute the interest amount, it will come out 166.4
So clearly statement 1 is alone sufficient.
For statement 2nd, take the least possible value of expression (1+r/100)^2 = 1.15
When you will compute the amount of interest then it will be 150. So it means that rate of interest can be or it can not be greater than 8%, which is ambiguous. So, it is not sufficient.
Hence IMO: (A)
If you compute the interest amount, it will come out 166.4
So clearly statement 1 is alone sufficient.
For statement 2nd, take the least possible value of expression (1+r/100)^2 = 1.15
When you will compute the amount of interest then it will be 150. So it means that rate of interest can be or it can not be greater than 8%, which is ambiguous. So, it is not sufficient.
Hence IMO: (A)
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akshatsingh
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Why cant the the rate of interest be found ? we can sqrt(1.15). subtract this from 1 and obtain the rate.
Am i missing something ?
My answer is D
Aks
Am i missing something ?
My answer is D
Aks
