Advertisements
Advertisements
प्रश्न
If `(2"y"+5"x")/(3"y"-5"x")=2 1/2`, find y, if x = 33
Advertisements
उत्तर
`(2"y"+5"x")/(3"y"-5"x")=5/2`
Given x = 33
`(2"y"+5xx33)/(3"y"-5xx33)=5/2`
⇒ `(2"y"+165)/(3"y"-165)=5/2`
⇒ 2 × (2y + 165) = 5 × (3y − 165)
⇒ 4y + 330 = 15y − 825
⇒ 11y = 1155
⇒ y = `1155/11` = 105
संबंधित प्रश्न
72% of 25 students are interested in mathematics. How many are not interested in mathematics?
If p : q = 2 : 5 , q : r = 4 : 3, then find p : r
Find the duplicate ratio of the following :
`2/3 : 4/9`
Find: The triplicate ratio of 3: 7
The ratio of income to savings of a family is 11 : 2. Find the expenditure if the savings is Rs 1520.
The ratio of income to the expenditure of a family is 7 : 6. Find the savings if the income is Rs 14000.
From the given pairs, find which ratio is larger:
(1:2) or (13:27)
Of the 288 persons working in a company, 112 are men and the remaining are women. Find the ratio of the number of men to the total number of persons.
In a school, the ratio of the number of large classrooms to small classrooms is 3 : 4. If the number of small rooms is 20, then find the number of large rooms.
There are 20 girls and 15 boys in a class. What is the ratio of number of girls to the total number of students in the class?
