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In a Business Expo, daily sales of mobile phones in two stalls are given below.

\begin{tabular}{|c|c|c|c|c|}
\hline
\begin{tabular}{l}
Stalls/Days
\end{tabular} &
\begin{tabular}{l}
1st Day
\end{tabular} &
\begin{tabular}{l}
2nd Day
\end{tabular} &
\begin{tabular}{l}
3rd Day
\end{tabular} &
... \\
\hline
Stall-A & 20 & 25 & 30 & ... \\
\hline
Stall-B & 3 & 6 & 12 & ... \\
\hline
\end{tabular}

(a) Write the number of sales of mobiles of Stall-A in series form.

(b) How many total mobiles did Stall-A sell in a week? Find it.

(c) Compare the sales of mobile phones sold by the stalls in a week.


Sagot :

ध्यान दिनुहोस्, आफूले गणना गरेका परिणाम प्रस्तुत गर्दछु:

(क)
स्टल-A का मोबाइल बिक्रीहरूको संख्या श्रेणीको रूपमा यस्तो लेख्न सकिन्छः
[tex]\[ \{20, 25, 30, 35, 40, 45, 50\} \][/tex]

(ब)
स्टल-A ले एक हप्ताभरीमा जम्मा कति मोबाइल बिक्री गर्यो पत्ता लगाउन पनि श्रेणीका सबै संख्याहरूको मात्रालाई जोड्नुपर्छ।

[tex]\[ = 20 + 25 + 30 + 35 + 40 + 45 + 50 \][/tex]
[tex]\[ = 245 \][/tex]

अतः स्टल-A ले एक हप्ताभरीमा 245 मोबाइलहरु बिक्री गर्यो।

(ग)
एक हप्ताभरीमा दुई स्टलहरूमध्ये कुनले कति मोबाइल बिक्री गर्यो तुलना गर्नुपर्दा:

स्टल-A ले एक हप्ताभरीमा जम्मा 245 मोबाइलहरु बिक्री गर्यो भने, स्टल-B ले एक हप्ताभरीमा जम्मा 111 मोबाइलहरु बिक्री गर्योछ।

अतः तुलना गर्दा:
स्टल-A ले एक हप्ताभरीमा बढी मोबाइलहरु बिक्री गरेको देखिन्छ। स्टल-A ले 245 मोबाइलहरु बिक्री गर्यो भने स्टल-B ले 111 मोबाइलहरु बिक्री गर्यो।

अतः स्टल-A ले स्टल-B भन्दा 134 मोबाइलहरु बढी बिक्री गर्यो।
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