Question
A firm sells 40 units of commodity X when its price is
10. At what price it will sell 60 units of the commodity if its price elasticity of supply is 0.8.ÂSolution
es = (delta Q* P)/ (delta P*Q) 0.8 = 20*10/(P2-20) *40 P2 = 16.25
The roots of the quadratic equation x² + px + q = 0 are in the ratio 3:4. If the sum and product of the roots are 7 and 12, respectively, find the valu...
Out of total number of people in an office, 40% are males. Ratio of number of married to that of unmarried people in the office is 3:2 while ratio of nu...
If x 8  + x -8  = 194, then find the value of (2x 2  – 4) 2  – 1.
A man covered 40 km by bus and rest 25 km on foot. If the speed of the bus is 150% more than that of the man and the whole distance is covered in 2 hour...
If, ( a + b = 12 ) and ( a² + b² = 80 ), then find the value of (a³ + b³). Â
- If x 4  – 83x 2  + 1 = 0, then find the value of x 3  - x -3  can be:
If 9x2 + 16y2 = 24xy, then find the ratio of ‘x’ and ‘y’, respectively.
In ∆ ABC, MN ‖ BC, the area of quadrilateral MBCN=130 sqcm. If AN : NC = 4 : 5, then the area of ∆ MAN is:
Find the value of ‘x’ in the given expression
(49/16)x × (64/343)x-1 = 4/7
