NCERT Exemplar Solutions
Class 7 - Mathematics - Unit 3: Data Handling - Problems and Solutions
Question 84

Question. 84

Observe the given data:

Days of the WeekMonTuesWedThursFriSat
Number of Mobile Phone Sets Sold504530552760

(a) Draw a bar graph to represent the above given information.
(b) On which day of the week was the sales maximum?
(c) Find the total sales during the week.
(d) Find the ratio of the minimum sale to the maximum sale.
(e) Calculate the average sale during the week.
(f) On how many days of the week was the sale above the average sales?

Answer:

(a) Give the bar graph here
(b) Saturday
(c) 267
(d) 9:20
(e) 44.5
(f) 4 days (Mon, Tue, Thu, Sat)

Detailed Answer with Explanation:

Total = 267, Average = 44.5. Compare each value with mean to count days.

NCERT Exemplar Solutions Class 7 – Mathematics – Unit 3: Data Handling – Problems and Solutions | Detailed Answers