Advertisements
Advertisements
प्रश्न
If (4x + 3y) : (3x + 5y) = 6 : 7, find x, if y = 10
Advertisements
उत्तर
(4x + 3y) : (3x + 5y) = 6 : 7
Given, y = 10
∴ (4x + 3 × 10) : (3x + 5 × 10) = 6 : 7
(4x + 30) : (3x + 50) = 6 : 7
7 × (4x + 30) = 6 × (3x + 50)
28x + 210 = 18x + 300
28x − 18x = 300 − 210
10x = 90
⇒ x = `90/10=9`
संबंधित प्रश्न
Find the triplicate ratio of 2a : 3b
If p : q = 2 : 5 , q : r = 4 : 3, then find p : r
Two positive numbers are in the ratio 3: 4 and the sum of their squares is 1225. Find the numbers.
In a mixture of 126 kg of milk and water, milk and water are in ratio 5 : 2. How much water must be added to the mixture to make this ratio 3 : 2?
If (a – x) : (b – x) be the duplicate ratio of a: b show that:
`(1)/x = (1)/a + (1)/b.`
Express the given ratio in its simplest form: 3 hours : 1 day
The ratio between two quantities is 3:4. If the first number is 810, find the second number.
Find the duplicate ratio of 2 : 3
If A: B = `(1)/(4) : (1)/(5)` and B : C = `(1)/(7) : (1)/(6)`, find A : B : C.
Out of 1800 students in a school, 750 opted basketball, 800 opted cricket and remaining opted table tennis. If a student can opt only one game, find the ratio of number of students who opted basketball to the number of students who opted table tennis.
