3 chairs and 2 tables cost Rs. 700 and 5 chairs and 3 tables cost Rs. 1100. What is the cost of 1 chair and 2 tables?
If (a + b)^{2 }– 2(a + b) = 80 and ab = 16, then what can be the value of 3a – 19b?
1 Crore+ students have signed up on EduRev. Have you? Download the App 
The ratio of the number of blue and red balls in a bag is constant. When there were 68 red balls, the number of blue balls was 36. If the number of blue balls was 63, how many red balls should be there in the bag?
If a + b + c = 9, ab + bc + ca = 26, a^{3} + b^{3} = 91, b^{3} + c^{3} = 72 and c^{3} + a^{3} = 35, then what is the value of abc?
If x + y + 3 = 0, then find the value of x^{3} + y^{3 } 9xy + 9.
Find the value of p for which the system of linear equations: px  3y = 5 and 6x + 2y = 12 has no solutions?
If (x + 6y) = 8, and xy = 2, where x > 0, what is the value of (x^{3} + 216y^{3})?
The cost of one dozen bananas is Rs. 5. The cost of one dozen oranges is Rs. 75. What will the cost of one and a quarter dozen bananas and threefourth dozen oranges?
The cost of 2 pencil, 4 pens and 8 erasers is Rs. 12 and the cost of 8 pens, 10 pencils and 4 erasers is Rs. 36. How much will 3 pencils, 3 pens and 3 erasers cost?
The cost of 7 chairs, 2 tables and 5 fans is Rs. 9350. If the cost of 3 chairs and a fan is Rs. 1950, find the cost of 2 chairs, 1 table and 2 fans.
406 videos217 docs164 tests

406 videos217 docs164 tests
