Question
A mixture of 280 ml contains milk
and water in the ratio of 3:1. If 60 ml of milk and 20 ml of water are added to the mixture, find the ratio of milk to water in the resultant mixture.Solution
ATQ, Quantity of milk in 280 ml of mixture = (3/4) × 280 = 210 ml Quantity of water in 280 ml of mixture = 280 – 210 = 70 ml New ratio = (210 + 60):(70 + 20) = 270:90 = 3:1
Simplify:
6x + 8y - [(12x + 6y) - (4x + 3y) + 2y] - 4xIf 9x2 + 16y2 = 24xy, then find the ratio of ‘x’ and ‘y’, respectively.
- Suppose [a + (1/16a)] = 3, then the value of [16a³ + (1/256a³)] is:
If, 6x + y = 20, and 2xy = 32, and 6x > y, then find the value of 216x³ – y³.
If x + 1/x = 2, find x⁷ + 1/x⁷.
(x – 6) 2 + (y + 2) 2 + (z – 4) 2 = 0, then find the value of 4x - 3y + z.
Three cubes of metal whose edges are 3cm, 4cm and 5cm. respectively are melted and a single cube is formed. What is the length of the edge of the newly ...
A number is increased by 20%, and the resulting number is decreased by 20%. If the initial number is ₹x, the final number is ₹2880. What is the valu...