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Zorluk: OrtaFractions, Decimals, and Percentages

In July, a company's IT department logged a set of service tickets. Of these tickets, 310\frac{3}{10} were categorized as hardware issues, 45%45\% were categorized as software issues, and the remaining 60 tickets were categorized as network issues. What was the total number of service tickets logged by the IT department in July?

Cevap: 240 tickets

Cevap

The total number of service tickets logged in July was 240.
Converting 310\frac{3}{10} gives 30%30\%. Combining hardware (30%30\%) and software (45%45\%) issues yields 75%75\% of the total tickets. The network tickets make up the remaining 25%25\% (100%75%100\% - 75\%). Setting 25%25\% of the total equal to 60 tickets gives a total of 600.25=240\frac{60}{0.25} = 240 service tickets.

Adım Adım Çözüm

1
Convert the fraction of hardware tickets to a percentage
310=0.30=30%\frac{3}{10} = 0.30 = 30\%
Expressing all portions as percentages enables direct combination.
2
Sum the percentages for hardware and software tickets
30\% + 45\% = 75\%
This determines the combined percentage of the non-network tickets.
3
Determine the remaining percentage corresponding to network tickets
100\% - 75\% = 25\%
The total of all categories must sum to 100%.
4
Calculate the total number of service tickets
600.25=240\frac{60}{0.25} = 240
Dividing the quantity of network tickets by their decimal equivalent of 0.25 gives the total count.

Anahtar Kavram

Combining fractions and percentages to solve for an unknown whole amount
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