यदि इकाई C अपनी गुणवत्ता में सुधार करती है और अपनी दोषपूर्ण वस्तुओं (defective items) में 40% की कमी करती है, जबकि इकाई C द्वारा उत्पादित दोषपूर्ण वस्तुओं की प्रारंभिक संख्या 50 है, तो दोषपूर्ण वस्तुओं की नई संख्या क्या होगी?

In a data table, the production of rice for country Q and country R is 60 lakh tons and 54 lakh tons respectively. The production of wheat for country S and country T is 52 lakh tons and 52 lakh tons respectively. What is the ratio of the total production of rice of countries Q and R to the total production of wheat of countries S and T?

In a survey of 5 countries (P, Q, R, S, T), the rice production values are 40, 60, 54, 70, and 51 lakh tons respectively. What is the average production of rice (in lakh tons) across all 5 countries?