mithun prajapati

Answer to: Lalit marks up his goods by 40% and gives a discount of 10%. Apart from this, he uses a faulty balance also, which reads 1000 gm for 800 gm. What is his net profit percentage if customer buys 1 kg from lalit?

Let us assume his CP/kg = Rs. 100

⇒ His SP/kg = Rs. 126

⇒ His Actual CP...

Answer to: Which of the following statements is true for the relationship between reliability and validity of a research tool ?

A valid test must be reliable.