Certainly! Let's solve this problem step by step:
### (क) Write the number of sales of mobiles of Stall-A in series form.
The number of mobile sales for Stall-A over the three days are provided in the table:
- First day: 20
- Second day: 25
- Third day: 30
Therefore, the series of mobile sales for Stall-A is:
[tex]\[ \{20, 25, 30\} \][/tex]
### (ख) How many total mobiles did Stall-A sell in a week? Find it.
To find the total sales of Stall-A over the three days, we sum up the number of mobiles sold each day:
[tex]\[ \text{Total sales of Stall-A} = 20 + 25 + 30 \][/tex]
From the provided data:
[tex]\[ 20 + 25 + 30 = 75 \][/tex]
Therefore, Stall-A sold a total of 75 mobiles in a week.
### (ग) Compare the sales of mobile phones sold by the stalls in a week.
To compare the total sales of Stall-A and Stall-B, we need the total sales of Stall-B over the same period.
Summing up the number of mobiles sold by Stall-B each day:
- First day: 3
- Second day: 6
- Third day: 12
[tex]\[ \text{Total sales of Stall-B} = 3 + 6 + 12 \][/tex]
From the provided data:
[tex]\[ 3 + 6 + 12 = 21 \][/tex]
Therefore, Stall-B sold a total of 21 mobiles in a week.
Now, comparing the sales:
- Stall-A: 75 mobiles
- Stall-B: 21 mobiles
Clearly, Stall-A sold more mobiles than Stall-B in a week, with a difference of:
[tex]\[ 75 - 21 = 54 \][/tex]
So Stall-A sold 54 more mobiles than Stall-B.
### Summary:
- (क) The series of mobile sales for Stall-A is [tex]\[ \{20, 25, 30\} \][/tex].
- (ख) Stall-A sold a total of 75 mobiles in a week.
- (ग) Stall-A sold 54 more mobiles than Stall-B, with Stall-A selling 75 mobiles and Stall-B selling 21 mobiles during the week.
