In a factory the ratio of salary of skilled and unskilled workers is `5 : 3` . Total salary of one day of both of them is Rs . 720 . Find daily wages of skilled and unskilled workers .

Below is given the frequency distribution of Daily wages (in rs ) of 130 workers . Find the modal wages of a worker .

The average monthly salary of workers in a factory is Rs.206 . If the average monthly salary of males females are Rs. 210 and Rs. 190 respectively , the percentage of female empolyed in the factory is

Mr. Kasam runs a small business of making earthen pots. He makes certain number of pots on daily basis. Production cost of each pot is Rs. 40 more than 10 times total number of pots, he makes in one day. If production cost of all pots per day is Rs. 600, find production cost of one pot and number of pots he makes per day.

A factory makes tennis rackets and cricket bats. A tennis racket takes 1.5 hours of machine time and 3 hours of craftman's time in its making while a cricket bat takes 3 hours of machine time and 1 hour of craftman's time. In a day , the factory has the availability of not more than 42 hours of machine time and 24 hours of craftsman's time. (i) What number of rackets and bats must be made if the factory is to work at full capacity ? (ii) If the profit on a racket and on a bat is Rs 20 and Rs. 10 respectively, find the maximum profit of the factor when it works at full capacity.

A company produes two types of cricket ball A and B. the production time of one ball of type B is double the type A (Time in units) . The company has a time to produce a maximum 2000 balls per day. The supply of raw material is sufficient for the production of 1500 balls (both A and B) per day. the company wants to make maximum profit by making profit fo Rs 3 from a ball of tye A and Rs. 5 from a ball of type b. Then (i) By defining suitable variables, write the objective function. (ii) Write the constraints. (iii) How many balls should be produced in each type per day in order to get maximum profit ?

A firm manufactures PVC pipes in three plants viz, X, Y and Z. The daily production volumes from the three firm X, Y and Z are respectively 2000 units, 3000 units and 5000 units. It is known from the past experience that 3% of the output from plant X, 4% from plant Y and 2% from plant Z are defective. A pipe is selected at random from a day's total production (i) find the probability that the selected pipe is defective one. (ii) If the selected pipe is a defective, then what is the probability that it was produced by plant Y ?

A firm manufactures PVC pipes in three plants viz, X, Y and Z . The daily production volumes from the three firms X , Y and Z are respectively 2000 units, 3000 units 5000 units. It is known from the past experience that 3% of the output from plant X , 4% from plant Y and 2% from plant Z are defective. A pipe is selected at random from a day's total production, (i) find the probability that the selected pipe is a defective one. (ii) if the selected pipe is a défective, then what is the probability that it was plant Y ?

A firm manufactures PVC pipes in three plants viz, X,Y and Z. The daily production volumes from the three firms X,Y and Z are respectively 2000 units, 3000 units and 5000 units. It is known from the past experience that 3% of the output from plant X,4% form plant Y and 2% from plant Z are defective. A pipe is selected at random from a days total production, (i)find the probability that the selected pipe is a defective one (ii)if the selected pipe is a defective ,then what is the probability that it was produced by plant Y?