A construction firm is building a skyscraper, and the height of the skyscraper in yards and feet after certain numbers of days is shown in the table below. What is the missing value in the table?
Days
12
200
330
560
Height (yards)
9
140
306
510
Height (feet)
27
420
?
1,530
813
918
975
990
Answers
Given : A construction firm is building a skyscraper, and the height of the skyscraper in yards and feet after certain numbers of days is shown in the table
DAYS 12 200 300 560
Height Yards 9 140 306 510
Height feet 27 420 ? 1530
To Find : missing value in the table
813
918
975
990
Solution:
Here number of days are irrelevant as there is a direct variation in Yards and feets
feets ∝ yards
=> feets = K yards
27 = k (9)
=> K = 3
Hence feets = 3 yards
Yards feets
140 x 3 = 420
306 x 3 = 918
510 x 3 = 1530
918 is the missing value in table
DAYS 12 200 300 560
Height Yards 9 140 306 510
Height feet 27 420 918 1530
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