Advertisements
Advertisements
Question
Find the following ratio.
The lengths of sides of a rectangle are 5 cm and 3.5 cm. Find the ratio of its perimeter to area.
Advertisements
Solution
Length of the rectangle, l = 5 cm
Breadth of the rectangle, b = 3.5 cm
∴ Perimeter of the rectangle = 2(l + b) = 2 × (5 + 3.5) = 2 × 8.5 = 17 cm
Area of the rectangle = l × b = 5 × 3.5 = 17.5 cm2
Perimeter of the rectangle : Area of the rectangle = 17 : 17.5 =` 17/ 17.5 = 170/175 = ( 170 ÷ 5)/(175 ÷ 5 ) = 34/35 = 34 : 35`
Thus, the ratio of perimeter to area of the rectangle is 34 : 35.
APPEARS IN
RELATED QUESTIONS
From the following pair of numbers, find the reduced form of ratio of first number to second number.
52, 78
Find the reduced form of the ratio of the first quantity to second quantity.
₹ 14, ₹ 12. 40 paise
Find the reduced form of the ratio of the first quantity to the second quantity.
3 years 4 months, 5 years 8 months
Express the following percentage as ratio in the reduced form.
75 : 100
Express the following percentage as ratios in the reduced form.
6.25%
Convert the following ratio into percentage.
15 : 25
Convert the following ratio into percentage.
`7/10`
Present ages of Vatsala and Sara are 14 years and 10 years respectively. After how many years the ratio of their ages will become 5 : 4?
The ratio of present ages of Rehana and her mother is 2 : 7. After 2 years, the ratio of their ages will be 1 : 3. What is Rehana's present age?
Find the following ratio.
The ratio of circumference of circle with radius r to its area.
The ages of Jatin, Nitin and Mohasin are 16, 24 and 36 years respectively. What is the ratio of Nitin’s age to Mohasin’s age?
24 Bananas were distributed between Shubham and Anil in the ratio 3 : 5, then how many bananas did Shubham get?
For the following numbers write the ratio of first number to second number in the reduced form.
65, 117
For the following numbers write the ratio of first number to second number in the reduced form.
114, 133
Write the following ratio in the reduced form.
Radius to the diameter of a circle.
Write the ratio of first quantity to second quantity in the reduced form.
1024 MB, 1.2 GB (1024 MB = 1 GB)
Write the ratio of first quantity to second quantity in the reduced form.
17 Rupees, 25 Rupees 60 paise
Write the ratio of first quantity to second quantity in the reduced form.
1.5 kg, 2500 gm
