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The diagram efficiency is the ratio of

The diagram efficiency is the ratio of Correct Answer Workdone on the blades to the energy supplied to the blades

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Which of the following statement(s) are true with respect to the concept of ‘EFFICIENCY’ as used in mainstream economics? 1. Efficiency occurs when no possible organization of production can make anyone better off without making someone else worse off. 2. An economy is clearly inefficient if it is inside the Production Possibility Frontier (PPF). 3. At a minimum, an efficient economy is on its Production Possibility Frontier (PPF). 4. The terms such as ‘Pareto Efficiency’, ‘Pareto Optimality’ and ‘Allocative Efficiency’ are all essentially one and the same which denote ‘efficiency in resource allocation’. Select the correct answer using the code given below:
Pavan and Sravan are two persons. If Pavan works with his actual efficiency and Sravan twice of his actual efficiency then it takes 25 days to complete the work. But If Pavan works twice of his actual efficiency and Sravan with his normal efficiency then the work is completed in 20 days. How many days would it take if Sravan alone works with his actual efficiency (in Days)?
Consider three software items: Program-X, Control Flow Diagram of Program-Y and Control Flow Diagram of Program-Z as shown below Program-X: Control Flow Diagram of Program-Y sumcal (int maxint, int value) {       int result=0, i=0;       if (value <0)       {           Value = -value;       }       while ( (i
Consider the following statements with respect to flow diagram in work-study: 1. Movement of machines is drawn in flow diagram. 2. Movement of men is drawn in flow diagram. 3. In flow diagram, all movements are drawn true to scale. Which of the above statements are correct?
Consider the following statements: 1. The air standard efficiency of an Otto cycle is a function of the properties of the working substance (gas) 2. For the same compression ratio and same input, the thermal efficiency of an Otto cycle is more than that of a Diesel cycle 3. Thermal efficiency of a Diesel cycle increases with decrease of cut-off ratio Which of the above statements are correct?
Efficiency of A is ¾ of the efficiency of B and efficiency of B is 80% of the efficiency of C. If A takes 120 days more than that of (B + C) working together to finish a work. In how many days; (A + B + C) can finish the whole work?
A and B can complete a work in 10 days and 15 days respectively. The efficiency of C is equal to the sum of efficiency of A and B. The efficiency of D is equal to the efficiency of A, B and C together. If A, B, C and D work together, they will complete the whole work in
Efficiency of Hermonie is 25% less than efficiency of Luna, efficiency of Luna is twice the efficiency of Dobbie. Hermione, Luna and Dobbie can complete their mutual assignment in 36 days. In how many days Hermonie independently complete same assignment.
Aman can complete a work in 30 days. If the efficiency of Aman is twice the efficiency of Parul and the efficiency of Parul is thrice the efficiency of Charu, find how many days will be taken to complete the work by all working together. 
A can do a piece of work in 8 days. The efficiency of B is half the efficiency of A, and the efficiency of C is 50% more than the efficiency of B. If all the three work together, what part of the work will they finish in 2 days?