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KarishmaB Can you please provide your explanation for this question ? MartyMurray
­I personally first did it just the way gmatophobia did it.

If you want another, possibly more orthodox way to do it, here's one.

To meet their quota, a team has to clean 4200 cars in the next 3 weeks. Their initial target was to clean 700 cars each week but they have only cleaned 550 cars per week until now. How many weeks in total did the team have to meet their quota?

Let T be the total number of weeks the team had.

700T = 550(T - 3) + 4200

700T = 550T - 1650 + 4200

150T = 2550

T = 17

A. 16
B. 17
C. 28
D. 39
E. 40


Correct answer: B­
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Thank you marty sir .Actually 150 * x =2100
This 2100 accounts for the backlog generated over the 'x' number of previous weeks passed so far.Another '2100' they are supposed to complete anyways in a span of coming 3 weeks.
Now things became clear to me.
MartyMurray
sayan640
KarishmaB Can you please provide your explanation for this question ? MartyMurray
­I personally first did it just the way gmatophobia did it.

If you want another, possibly more orthodox way to do it, here's one.

To meet their quota, a team has to clean 4200 cars in the next 3 weeks. Their initial target was to clean 700 cars each week but they have only cleaned 550 cars per week until now. How many weeks in total did the team have to meet their quota?

Let T be the total number of weeks the team had.

700T = 550(T - 3) + 4200

700T = 550T - 1650 + 4200

150T = 2550

T = 17

A. 16
B. 17
C. 28
D. 39
E. 40


Correct answer: B­

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