Daily - The Hindu Editorial Vocabular \2022-04-20

There are 50 machines in a factory each producing 1000 bolts daily. For each additional machine installed, the output per machine drops by 10 bolts. How many additional machines should be installed to maximize the total output per day? 20 (b) 30 (c) 50 (d) 25

Fill in the blanks : (a) A quantity which can vary from one individual to another is called a ............. (b) Sizes of shoes are ............... variables. (c) Daily temperature is ............... variable. (d) The range of the data 7, 13, 6, 25, 18, 20, 16 is ................(e) In the class interval 35 - 46, the lower limit is .............and upper limit is ........... (f) The class mark of class interval 22 - 29 is ...............

Find the values of k if area of triangle is 9 sq. units and vertices are: (-2,0),(0,4)(0,k)

To maintain his health a person must fulfil certain minimum daily requiremens for several kinds of nutrients. Assuming that there are only thee kinds of nutrients-calcium, protein and calories and the person’s diet consists of only two food items, I and II, whose price and nutrient contents are shown in the table below: , Food I (per Ib), Food II (per Ib), Minimum daily requirement for the nutrient Calcium Protein Calories, 10 5 2, 5 4 6, 20 20 13 Price (Rs.), 60, 100, What combination of two food items will satisfy the daily requirement and entail the least cost? Formulate this as a LPP.

A block of mass 20kg is pushed with a horizontal force of 90N. If the coefficient of static & kinetic friction are 0.4 & 0.3, the frictional force acting on the block is: (g =10ms^(-2) )

Given below is the frequency distribution table regarding the concentration of sulphur dioxide in the air in parts per million of a certain city for 30 days. {:("Concentration", 0.00-0.04, 0.04-0.08, 0.08-0.12, 0.12-0.16, 0.16-0.20, 0.20-0.24), ("No. of days":, 4, 8, 9, 2, 4, 3):} Find the probability of concentration of sulphur dioxide in the interval 0.12-0.16 on any of these days.

A long horizontally fixed wire carries a current of 100 A directly above and parallel to it is a fine wire that carries a current of 20 A and weight 0.04 N/m The distance between the two wires for which the upper wire is just supported by magnetic repulsion is

A 50 mL solution of weak base BOH is titrated with 0.1N HCI solution. The pH of solution is found to be 10.04 and 9.14 after the addition of 5.0mL and 20.0 mL of acid respectively. Find out K_(b) for weak base.

For the following data of daily wages (in rupees0 received by 30 labourers in a certain factory, construct a grouped frequency distribution table by dividing the range into class intervals of equal width, each corresponding to 2 rupees, in such a way that the mid-value of the first class interval corresponds to 12 rupees. 14,16,16,14,22,13,15,24,12,23,14,20,17,21,22,18,18,19,20,17,16,15,11,12,21,20,17,18,19,23

For the following data of daily wages (in rupees0 received by 30 labourers in a certain factory, construct a grouped frequency distribution table by dividing the range into class intervals of equal width, each corresponding to 2 rupees, in such a way that the mid-value of the first class interval corresponds to 12 rupees. 14,16,16,14,22,13,15,24,12,23,14,20,17,21,22,18,18,19,20,17,16,15,11,12,21,20,17,18,19,23