The income of A and B are in the ratio of 3 : 2 and their expenditure in the ratio of 5 : 3. If each saves Rs. 2500, then the expenditure of B is :A और B की आय 3 : 2 के अनुपात में है और उनका व्यय 5 : 3 के अनुपात में है। यदि प्रत्येक 2500 रु० बचाता है, तो B का व्यय है :
Pick an option to check yourself, or open the answer below.
Show answer & explanation
Correct answer: B. Rs. 75007500 रु०
Explanation
Let incomes be 3x and 2x, and expenditures 5y and 3y. Then 3x − 5y = 2500 and 2x − 3y = 2500. Multiply the first by 2 and the second by 3: 6x − 10y = 5000 and 6x − 9y = 7500. Subtracting, y = 2500. B's expenditure = 3y = Rs. 7500.माना आय 3x और 2x तथा व्यय 5y और 3y हैं। तब 3x − 5y = 2500 और 2x − 3y = 2500। पहले को 2 से और दूसरे को 3 से गुणा करने पर 6x − 10y = 5000 तथा 6x − 9y = 7500। घटाने पर y = 2500। B का व्यय = 3y = 7500 रु०।More Mathematics & Numerical Ability questions
- Cost price of 20 articles is equal to selling price of x articles. If the profit is 25%, then the value of x is :
- If all the angles of a quadrilateral are less than 180°, then the quadrilateral is a :
- The HCF and LCM of two numbers a and b are respectively 6 and 210. If a + b = 72, then 1/a + 1/b =
- If 2ˣ = 5ʸ = (10)⁻ᶻ, then 1/x + 1/y + 1/z =
- The mean of the factors of 10 is :
- √(6 + √(6 + √(6 + .....∞))) is equal to :