Advertisements
Advertisements
Question
The ratio between 7 and 5 is same as the ratio between ₹ x and ₹ 20.50; find the value of x.
Advertisements
Solution
Since, It is given that the ratio between 7 and 5 is same as the ratio between ₹ x and ₹ 20.50
∴ 7 : 5 = x : 20.50
⇒ 5x = 7 × 20.50
⇒ x = `(7×20.50)/5`
⇒ x = 28.7
APPEARS IN
RELATED QUESTIONS
If a : b = 5 : 3, find : `(5a - 3b)/(5a + 3b)`.
If r2 = pq, show that p : q is the duplicate ratio of (p + r) : (q + r).
Find the sub-triplicate ratio of the following :
125a3 : 343b6
If `(by + cz )/(b^2 + c^2) = (cz + ax)/(c^2 + a^2) = (ax + by)/(a^2 + b^2)` then show that each ratio is equal to `x/a = y/b = z/c`.
Check whether the following quantities form a proportion or not?
`1 1/2, 3 1/4, 4 1/2 "and" 9 3/4`
If x, y, and z are in continued proportion, then which of the following is true:
x : y = y : z
Write the following ratio in the simplest form:
Rs 6.30 : Rs 16.80
If `a/b = c/d = c/f`, prove that each ratio is `sqrt((3a^2 - 5c^2 + 7e^2)/(3b^2 - 5d^2 + 7f^2)`
The ratio of 130 cm to 1 m is 13 : 10
A carpenter had a board which measured 3 m × 2 m. She cut out a rectangular piece of 250 cm × 90 cm. What is the ratio of the area of cut out piece and the remaining piece?
