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musical33
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John spent 40% of his earning last month on rent and 30% Updated on: 14 Mar 2013, 04:08
Originally posted by musical33 on 14 Mar 2013, 04:04.
Last edited by Bunuel on 14 Mar 2013, 04:08, edited 1 time in total.
Edited the question and the tags.
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B
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5% (low)

Question Stats:

84% (01:19) correct 16% (01:36) wrong based on 177 sessions

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John spent 40 percent of his earning last month on rent and 30 percent less than what he spent on rent to purchase a new dishwasher. What percent of last month's earning did John have left over?

(A) 30%
(B) 32%
(C) 45%
(D) 68%
(E) 70%

hey guys,
could someone solve this problem with step by step explanation, please?
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B
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Bunuel
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John spent 40% of his earning last month on rent and 30% 14 Mar 2013, 04:11
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musical33
John spent 40 percent of his earning last month on rent and 30 percent less than what he spent on rent to purchase a new dishwasher. What percent of last month's earning did John have left over?

(A) 30%
(B) 32%
(C) 45%
(D) 68%
(E) 70%

hey guys,
could someone solve this problem with step by step explanation, please?
Show more

Say John's earning last month was $100.

John spent 40 percent of his earning last month on rent --> $40 on rent;
30 percent less than what he spent on rent to purchase a new dishwasher --> $40*0.7=$28 on the dishwasher.

Left over amount 100 - (40 + 28) = $32.

Answer: B.

Hope it's clear.
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John spent 40% of his earning last month on rent and 30% 14 Mar 2013, 04:15
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Bunuel
musical33
John spent 40 percent of his earning last month on rent and 30 percent less than what he spent on rent to purchase a new dishwasher. What percent of last month's earning did John have left over?

(A) 30%
(B) 32%
(C) 45%
(D) 68%
(E) 70%

hey guys,
could someone solve this problem with step by step explanation, please?

Say John's earning last month was $100.

John spent 40 percent of his earning last month on rent --> $40 on rent;
30 percent less than what he spent on rent to purchase a new dishwasher --> $40*0.7=$28 on the dishwasher.

Left over amount 100 - (40 + 28) = $32.

Answer: B.

Hope it's clear.
Show more

thank you Bunuel
my problem with this what is the $40*0.7=$28
what is the .7 ?
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John spent 40% of his earning last month on rent and 30% 14 Mar 2013, 04:18
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musical33
Bunuel
musical33
John spent 40 percent of his earning last month on rent and 30 percent less than what he spent on rent to purchase a new dishwasher. What percent of last month's earning did John have left over?

(A) 30%
(B) 32%
(C) 45%
(D) 68%
(E) 70%

hey guys,
could someone solve this problem with step by step explanation, please?

Say John's earning last month was $100.

John spent 40 percent of his earning last month on rent --> $40 on rent;
30 percent less than what he spent on rent to purchase a new dishwasher --> $40*0.7=$28 on the dishwasher.

Left over amount 100 - (40 + 28) = $32.

Answer: B.

Hope it's clear.

thank you Bunuel
my problem with this what is the $40*0.7=$28
what is the .7 ?
Show more

30 percent less than what he spent on rent to purchase a new dishwasher = 40 - 0.3*40 = 0.7*40.

Or: 30 percent less than what he spent on rent to purchase a new dishwasher means that he spent 70% of the rent on the dishwasher.

Hope it's clear.
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John spent 40% of his earning last month on rent and 30% 21 Jun 2017, 06:21
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musical33
John spent 40 percent of his earning last month on rent and 30 percent less than what he spent on rent to purchase a new dishwasher. What percent of last month's earning did John have left over?

(A) 30%
(B) 32%
(C) 45%
(D) 68%
(E) 70%

hey guys,
could someone solve this problem with step by step explanation, please?
Show more

200(.4) = 80 on house keepiing
80 (.70) 56 dishwasher

200-136/200 = 32%

Thus
"B"
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John spent 40% of his earning last month on rent and 30% 21 Jun 2017, 23:10
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John spent 40% of the earnings on rent.

He also spent 30% less than that to purchase a dishwasher, so % amount spent on dishwasher = (100-30)% (40%) = 28%.

So, he was left with (100-28-40)% = 32% of his earnings.
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John spent 40% of his earning last month on rent and 30% 30 Nov 2019, 13:37
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