QUESTION 1 Top Security Sdn. Bhd. is a leading closed-circuit television (CCTV) manufacturer in Malaysia. The company produces three types of CCTVs for general surveillance namely dome camera, bullet camera and PTZ camera. For all these CCTVs, plastic, metal and glass are the three basic materials used in manufacturing these CCTVs. Table 1 summarizes the material requirements for each type of CCTVs. Table 1: Material Requirements for CCTVs Plastic (m/unit) Metal (m-/unit) Glass (munit) Dome Camera (unit) 1.2 3.0 0.5 Bullet Camera (unit) 0.8 2.2 1.0 PTZ Camera (unit) 0.5 1.2 2.5 The total amount of material supplies weekly are 170 m of plastic, 435 m of metal and 350 m of glass. However, the recent pandemic has increases the cases of burglaries, theft and house break- in nationwide, hence, the demand for CCTVs has been increased by two-fold. Therefore, the company has decided to double up the weekly material supplies starting on the first week of November 2020 to meet the demand. Use LU Decomposition method to find the number for each type of CCTVs in Table 1 that can be produced weekly starting from November 2020. QUESTION 1 Top Security Sdn. Bhd. is a leading closed-circuit television (CCTV) manufacturer in Malaysia. The company produces three types of CCTVs for general surveillance namely dome camera, bullet camera and PTZ camera. For all these CCTVs, plastic, metal and glass are the three basic materials used in manufacturing these CCTVs. Table 1 summarizes the material requirements for each type of CCTVs. Table 1: Material Requirements for CCTVs Plastic (m/unit) Metal (m-/unit) Glass (munit) Dome Camera (unit) 1.2 3.0 0.5 Bullet Camera (unit) 0.8 2.2 1.0 PTZ Camera (unit) 0.5 1.2 2.5 The total amount of material supplies weekly are 170 m of plastic, 435 m of metal and 350 m of glass. However, the recent pandemic has increases the cases of burglaries, theft and house break- in nationwide, hence, the demand for CCTVs has been increased by two-fold. Therefore, the company has decided to double up the weekly material supplies starting on the first week of November 2020 to meet the demand. Use LU Decomposition method to find the number for each type of CCTVs in Table 1 that can be produced weekly starting from November 2020