Hey, me again !
This was the first quant question I got on the Gmat Prep Test 1, and got it wrong !
(1/5)^m * (1/4)^18 = 1/2(10)^35 , m = ?
A - 17
B - 18
C - 34
D - 35
E - 36
OA : D - 35
Can't figure out why ... Do you find it easy for a power question ?
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Gdieterling
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truplayer256
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(1/5)^m * (1/4)^18 = 1/2(10)^35
1/5^m*1/4^18=1/2(2*5)^(35)
1/5^m*1/2^36=1/2^36*5^35
1/5^m*2^36=1/2^36*5^35
Match both sides of the equation.
m=35
1/5^m*1/4^18=1/2(2*5)^(35)
1/5^m*1/2^36=1/2^36*5^35
1/5^m*2^36=1/2^36*5^35
Match both sides of the equation.
m=35
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Gdieterling
- Junior | Next Rank: 30 Posts
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