<PRE><B>Question 273158</B>
Mr. Graham invested some of his $18,000 in bonds that made a 5% profit and the rest in bonds that made a 12% profit.  If the profit on the 12% bonds was $885 more than the profit on the 5% bonds, ow much did Mr. Graham invest in the 5% bonds?


Let him invest x in 5% bonds

5%bonds-----------------12%bonds-------------- Total

x------------------------18000-x---------------18000 ( Investment)


0.05x--------------------0.12(18000-x)      ( interest)


The difference betwen 12% bond interest and 5% bond interest is $885

0.12(18000-x) -0.05x=885

2160 - 0.12x -0.05x = 885


-0.17x =-2160+885

-0.17x = -1275

x= -1275/0.17

=7500

He invested $ 7500 in 5% bonds






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