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16 Sep 2015, 11:36
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Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
15%
(low)
Question Stats:
84% (01:42) correct
16%
(02:18)
wrong
based on 248
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When Jessica withdrew $200 from her bank account, her account balance decreased by 2/5. If she deposits an amount equal to 1/4 of the remaining balance, what will be the final balance in her bank account?
A) 300
B) 375
C) 400
D) 500
E) 575
I have been attempting to apply backsolving to this problem. Any advice on setting it up as such, or overall is backsolving not the way to go with this problem?
A) 300
B) 375
C) 400
D) 500
E) 575
I have been attempting to apply backsolving to this problem. Any advice on setting it up as such, or overall is backsolving not the way to go with this problem?
16 Sep 2015, 11:42
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As per the question 200=2a/5
thus- a which is the total amount =500
The amount thus left =300
She then deposited 1/4 of 300=75
total amount in her account =375
thus- a which is the total amount =500
The amount thus left =300
She then deposited 1/4 of 300=75
total amount in her account =375
16 Sep 2015, 21:08
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If by backsolving you mean to say that solving with the use of options, then that might take you more time for solving the question in this case.
You can easily arrive at the answer by solving the equation itself.
Assume the total balance to be x,
From the question, 200 = 2x/5
Hence x (total) = 500
Remaining balance after taking 200 out = 300
(1/4)th of 300 is 75.
Hence the total amount in the account is 375
You can easily arrive at the answer by solving the equation itself.
Assume the total balance to be x,
From the question, 200 = 2x/5
Hence x (total) = 500
Remaining balance after taking 200 out = 300
(1/4)th of 300 is 75.
Hence the total amount in the account is 375
