Advertisements
Advertisements
प्रश्न
The ratio of present ages of Albert and Salim is 5 : 9. Five years hence ratio of their ages will be 3 : 5. Find their present ages.
Advertisements
उत्तर
Let the present ages of Albert and Salim be 5x years and 9x years, respectively.
5 years hence,
Age of Albert = (5x + 5) years
Age of Salim = (9x + 5) years
It is given that five year hence, the ratio of their ages will be 3 : 5.
`therefore (5x + 5)/(9x + 5) = 3/5`
⇒ 25x + 25 = 27x + 15
⇒ 27x - 25x = 25 - 15
⇒ 2x = 10
⇒ x = 5
∴ Present age of Albert = 5x = 5 × 5 = 25 years
Present age of Salim = 9x = 9 × 5 = 45 years
Thus, the present age of Albert is 25 years and the present age of Salim is 45 years.
APPEARS IN
संबंधित प्रश्न
From the following pair of numbers, find the reduced form of ratio of first number to second number.
38, 57
Find the reduced form of the ratio of the first quantity to second quantity.
700 rs, 308 rs
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.
44 : 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`
The ratio of ages of Abha and her mother is 2 : 5. At the time of Abha's birth her mothers age was 27 year. Find the present ages of Abha and her mother.
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?
Find the following ratio.
The ratio of radius to circumference of the circle.
Find the following ratio.
The ratio of circumference of circle with radius r to its area.
The ratio of length and breadth of a rectangle is 3 : 1, and its perimeter is 36 cm. Find the length and breadth of the rectangle.
If the product of two numbers is 360 and their ratio is 10 : 9, then find the numbers.
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.
4 sq.m, 800 sq.cm
Write the ratio of first quantity to second quantity in the reduced form.
1.5 kg, 2500 gm
