A man lent $2000, part of this at 4% and the rest at 6% per annum simple interest. The whole annual interest amounted to $92. How much did he lend at 6%?
a) $1000
b) $900
c) $800
d) $700
e) $600
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answer is $600 E
E. Cool
[6%x + (2000-x)4%] = 92
x=600
Option E
E…
Yes E it is…
Prolly, a prob on allegation shd be solved like dis,
Since the interest gained is 92$, the average interest rate is 4.6%
If 1000$ each were given at 4% and 6%, the average interest rate would have landed at 5%. However, there has to be an extra lending @4% to bring down the overall rate to 4.6%. Another 400$ at 4% would make it 4.6% That makes 600$ @ 6%
Following comment was posted by @Dinesh Perera in my Google Buzz. I find it different.
4a + 6b = 9200
a + b = 2000
therefor b = 600
a = 1400
E
or faster one
4a+6(2000-a)=9200