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# The usage of sugar of a family of 3 adults and 2 children was 13 kg in

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Joined: 04 Jan 2015
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The usage of sugar of a family of 3 adults and 2 children was 13 kg in  [#permalink]

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26 Jul 2018, 00:35
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Difficulty:

25% (medium)

Question Stats:

77% (01:18) correct 23% (01:31) wrong based on 43 sessions

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The usage of sugar of a family of 3 adults and 2 children was 13 kg in a certain month. If the monthly average usage of sugar for an adult is 3 kg and for a child is 1 kg, by what percent the specific month’s sugar consumption was more or less than the typical usage?

A. 22.22% more
B. 18.18% more
C. 15.38% more
D. 15.38% less
E. 18.18% less

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Re: The usage of sugar of a family of 3 adults and 2 children was 13 kg in  [#permalink]

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26 Jul 2018, 02:15
monthly average usage of sugar for an adult is 3 kg

monthly average usage of sugar for a child is 1 kg

monthly average usage of sugar for a family of 3 adults and 2 children = 3 * 3 + 2 * 1 = 9 + 2 = 11

Actual usage of sugar of a family of 3 adults and 2 children was 13 kg

percent of specific month’s sugar consumption over the typical usage = $$\frac{difference}{original} * 100$$

=> $$\frac{13-11}{11} * 100$$ = $$\frac{2}{11} * 100$$

= 18.18% more more than average monthly consumption because specify month consumption > average monthly consumption.

Hence option B
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Re: The usage of sugar of a family of 3 adults and 2 children was 13 kg in  [#permalink]

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30 Jul 2018, 05:50

Solution

Given:
• The monthly average usage of sugar for an adult is 3 kg and for a child is 1 kg
• The usage of sugar of a family of 3 adults and 2 children was 13 kg in a certain month

To find:
• By what percent the specific month’s sugar consumption was more or less than the typical usage

Approach and Working:
As per the typical usage,
• Total usage of 3 adults in a month = 3 * 3 = 9 kg
• Total usage of 2 children in a month = 2 * 1 = 2 kg
• So, total usage of all = 9 + 2 = 11 kg

In the specified month, total usage is 13 kg.

As 13 > 11, we can say the usage is more than typical usage.
• Percentage more in terms of usage = $$\frac{13 – 11}{11}$$ * 100 = 18.18%

Hence, the correct answer is option B.

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Re: The usage of sugar of a family of 3 adults and 2 children was 13 kg in &nbs [#permalink] 30 Jul 2018, 05:50
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