The sale of electric bulbs on different days of a week is shown below: |
Observe the pictograph and answer the following questions. |
(a) How many bulbs were sold on Friday? |
(b) On which day were the maximum number of bulbs sold? |
(c) On which of the days same number of bulbs were sold? |
(d) On which of the days minimum number of bulbs were sold? |
(e) If one big carton can hold 9 bulbs. How many cartons were needed in the given week? |
Answer:
In the given pictograph, 1 picture = 2 bulbs (a) Number of bulbs sold on Friday \[=7\times 2\] = 14 bulbs (b) Maximum number of bulbs were sold on Sunday i.e., 18 bulbs (c) The same number of bulbs were sold on Wednesday and Saturday i.e., 8 bulbs. (d) The minimum number of bulbs were sold on Wednesday and Saturday i.e., 8 bulbs. (e) Total number of bulbs sold in a week \[=12+16+8+10+14+8+18=86\] Now, number of cartons which can hold 9 bulbs = 1 and number of carton which can hold 1 bulb \[=\frac{1}{9}\] \[\therefore \] Number of cartons which can hold 86 bulb \[=\frac{1\times 86}{9}\] \[=\frac{86}{9}=9\frac{5}{9}\] Hence, 10 cartons were needed in the given week.
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