Question
A trader purchased 60 kg of wheat at Rs. 18 per kg. He sold
some of it at a profit of 12% and the remaining at a profit of 18%. If his total profit was Rs. 144, find the quantity of wheat sold at 18% profit.Solution
ATQ,
Let the quantity of wheat sold at 18% profit be ‘x’ kg and the quantity of wheat sold at 12% profit be ‘60 – x’ kg.
ATQ;
18 × 0.12 × (60 – x) + 18 × 0.18 × x = 144
Or, 129.6 - 2.16x + 3.24x = 144
Or, 1.08x = 14.4
Or, x = 13.33
Therefore, the trader sold 13.33 kg of wheat at 18% profit.
In a quadrilateral ABCD, the diagonals AC and BD intersect at O. If AO = 8 cm, OC = 12 cm, BO = 6 cm, and OD = 9 cm, find the area of the quadrilateral ...
What is 4(a³b ⁶ ) 16 × 16(a ⁴ b²)2 equal to?
A trader marked an article 50% above its cost price and sold it after allowing a discount of 30%. If the transaction resulted in a profit of Rs. 26, the...
Find the variance of the numbers 13, 16, 22, 17.
The ratio of the angles of a quadrilateral is 3:2:7:8. What is the sum of the largest and the smallest angle?
The area (in square units) of the quadrilateral ABCD, formed by the vertices A (0, -2), B (2, 1), C (0, 4), and D (-2, 1) is: