document.write( "Question 1210354: The monthly salary of Mr. Johnson was ₦320,000 for each of the first three years. He then got an annual increment of ₦40,000 per month for each of the following successive 12 years. His salary remained stationary till retirement when he found that his average monthly salary during the service period was ₦698,000.\r
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\n" ); document.write( "\n" ); document.write( "(a) Prove that there is an Arithmetic Progression (AP) in the first 3 years of service.
\n" ); document.write( "(b) Compute the total salary in the first 3 years of service.
\n" ); document.write( "(c) Calculate the monthly and annual salary for the fourth year of service.
\n" ); document.write( "(d) Determine the monthly and annual salary for the ninth year of service.
\n" ); document.write( "(e) Find the total salary up to the 12th year of service.
\n" ); document.write( "(f) Obtain the total salary up to the 15th year of service.
\n" ); document.write( "(g) Find the monthly salary at the end of the 15th year of service.
\n" ); document.write( "(h) Compute the period of service. \n" ); document.write( "
Algebra.Com's Answer #852016 by Edwin McCravy(20054)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "The problem is botched.\r\n" );
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document.write( " year           salary       average \r\n" );
document.write( "  1            ₦320000       ₦320000\r\n" );
document.write( "  2            ₦320000       ₦320000\r\n" );
document.write( "  3            ₦320000       ₦320000\r\n" );
document.write( "  4            ₦360000       ₦330000\r\n" );
document.write( "  5            ₦440000       ₦352000\r\n" );
document.write( "  6            ₦560000       ₦386666.667\r\n" );
document.write( "  7            ₦720000       ₦434285.714\r\n" );
document.write( "  8            ₦920000       ₦495000\r\n" );
document.write( "  9           ₦1160000       ₦568888.889\r\n" );
document.write( " 10           ₦1440000       ₦656000\r\n" );
document.write( " 11           ₦1760000       ₦756363.636\r\n" );
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document.write( "As you see, he could not have worked 11 years because if he had, he would\r\n" );
document.write( "have already averaged more than ₦698,000 per month.\r\n" );
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document.write( "Sorry, but we cannot help you.  Get the right numbers and post the correct\r\n" );
document.write( "problem.  Then we can help you.\r\n" );
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document.write( "Edwin
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