Page 146 - Viva

Tally Marks
We use pictographs to represent data with
small numbers. For large numbers, it is not

possible to draw so many pictures. Thus, we Mental Maths
draw tally marks to represent such numbers. Fill in the blanks using tally marks.
(a) Your age __________
Tally marks are vertical lines. We draw one
vertical line for one observation. After drawing (b) The number of days in the month
you were born __________
the four lines vertically, for the fifth observation, (c) Your weight __________ (in kg)

we draw a line crossing the four vertical lines
as shown, | | | |. Thus, each | | | | represents

five observations.
Example 3: The given table shows the number of passengers of a train who booked their
tickets for four different stations.

Number of
Stations Tally Marks
Passengers

Station 1 | | | | | | | | | | | | | | | | | | | | | | | | | | | 33

Station 2 | | | | | | | | | | | | | | | | | | 22

Station 3 | | | | | | | | | | | | | | | | | | | | 24

Station 4 | | | | | | | | | | | | | | | | 20

Total 99
Read the data carefully and answer the following questions.
(a) For which station did the maximum passengers book their tickets?
(b) For which station did the minimum passengers book their tickets?
(c) How many passengers booked their tickets for station 3?
(d) What is the total number of passengers who booked their tickets for

station 1 and station 4?
Solution: (a) The maximum passengers booked their tickets for station 1.

(b) The minimum passengers booked their tickets for station 4.
(c) 24 passengers booked their tickets for station 3.

(d) Number of passengers who booked their tickets for station 1 were 33.

Number of passengers who booked their tickets for station 4 were 20.
Total number of passengers who booked their tickets for stations 1 and 4
= 33 + 20 = 53

So, 53 passengers booked their tickets for station 1 and station 4.

136