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## Solve for S1

This topic has 2 expert replies and 2 member replies
BlindVision Really wants to Beat The GMAT!
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Solve for S1 Fri Apr 06, 2012 10:43 pm
Elapsed Time: 00:00
• Lap #[LAPCOUNT] ([LAPTIME])

S1 = \$5,850 + [10% x (\$8,250 + 40% x S1)]

S1 = \$6,953.13

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Anurag@Gurome GMAT Instructor
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Fri Apr 06, 2012 10:50 pm
BlindVision wrote:

S1 = \$5,850 = [10% x (\$8,250 + 40% x S1)]

S1 = \$6,953.13
Can you please check the equation again? S1 = \$5,850 = [10% x (\$8,250 + 40% x S1)]

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BlindVision Really wants to Beat The GMAT!
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Fri Apr 06, 2012 10:59 pm
Hi Anurag... you are fast! Correction was made right before you posted. Would appreciate your help. Thank you!

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Fri Apr 06, 2012 11:03 pm
S1 = 5850 + [10% x (8250 + 40% x S1)]
S1 = 5850 + [0.1 x (8250 + 0.4S1)] [I have converted 10% in decimals as 0.1 and 40% as 0.4]
S1 = 5850 + [825 + 0.04S1] [multiplying 0.1 with (8250 + 0.4S1)]
S1 = 5850 + 825 + 0.04S1
S1 - 0.04S1 = 6675
==> 0.96S1 = 6675
==> S1 = 6675/0.96
==> S1 = 6953.125, when rounded we get \$6953.13.

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### GMAT/MBA Expert

Anurag@Gurome GMAT Instructor
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Fri Apr 06, 2012 11:04 pm
BlindVision wrote:
Hi Anurag... you are fast! Correction was made right before you posted. Would appreciate your help. Thank you!
Cool, thanks!

S1 = \$5,850 + [10% x (\$8,250 + 40% x S1)]
10% = 10/100 = 0.1 and 40% = 40/100 = 0.4
So, S1 = \$5,850 + [0.1 x (\$8,250 + 0.4 x S1)]
S1 = \$5,850 + [\$825 + (0.1 *0.4 x S1)]
S1 = \$6,675 + 0.04S1
S1 - 0.04S1 = \$6,675
S1(1 - 0.04) = \$6,675
0.96 * S1 = \$6,675
S1 = \$6,675/0.96 = \$6,953.125

_________________
Anurag Mairal, Ph.D., MBA
GMAT Expert, Admissions and Career Guidance
Gurome, Inc.
1-800-566-4043 (USA)

GMAT with Gurome

Thanked by: BlindVision

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