Question

2. Find the LCM and HCF of the following integers by the prime factorization method. (i) 12, 15 and 21 (ii) 17, 23, and 29 (iii) 8, 9 and 25 (iv) 72 and 108 (v) 306 and 657 ​

Answer 1

Step-by-step explanation:

Purchase price of wrist watch = Rs. 250

Purchase price of wrist watch = Rs. 250Amount spent on repairs = Rs. 50

Purchase price of wrist watch = Rs. 250Amount spent on repairs = Rs. 50Cost price of the watch = Purchase price + repair expenses= 250 + 50 = 300

Purchase price of wrist watch = Rs. 250Amount spent on repairs = Rs. 50Cost price of the watch = Purchase price + repair expenses= 250 + 50 = 300Selling price = Rs. 450

Purchase price of wrist watch = Rs. 250Amount spent on repairs = Rs. 50Cost price of the watch = Purchase price + repair expenses= 250 + 50 = 300Selling price = Rs. 450Since SP > CP so profit = 450 - 300 = 150

Purchase price of wrist watch = Rs. 250Amount spent on repairs = Rs. 50Cost price of the watch = Purchase price + repair expenses= 250 + 50 = 300Selling price = Rs. 450Since SP > CP so profit = 450 - 300 = 150Profit% =

Purchase price of wrist watch = Rs. 250Amount spent on repairs = Rs. 50Cost price of the watch = Purchase price + repair expenses= 250 + 50 = 300Selling price = Rs. 450Since SP > CP so profit = 450 - 300 = 150Profit% = CP

Purchase price of wrist watch = Rs. 250Amount spent on repairs = Rs. 50Cost price of the watch = Purchase price + repair expenses= 250 + 50 = 300Selling price = Rs. 450Since SP > CP so profit = 450 - 300 = 150Profit% = CPTotal profit

Purchase price of wrist watch = Rs. 250Amount spent on repairs = Rs. 50Cost price of the watch = Purchase price + repair expenses= 250 + 50 = 300Selling price = Rs. 450Since SP > CP so profit = 450 - 300 = 150Profit% = CPTotal profit

Purchase price of wrist watch = Rs. 250Amount spent on repairs = Rs. 50Cost price of the watch = Purchase price + repair expenses= 250 + 50 = 300Selling price = Rs. 450Since SP > CP so profit = 450 - 300 = 150Profit% = CPTotal profit ×100=

Purchase price of wrist watch = Rs. 250Amount spent on repairs = Rs. 50Cost price of the watch = Purchase price + repair expenses= 250 + 50 = 300Selling price = Rs. 450Since SP > CP so profit = 450 - 300 = 150Profit% = CPTotal profit ×100= 300

Purchase price of wrist watch = Rs. 250Amount spent on repairs = Rs. 50Cost price of the watch = Purchase price + repair expenses= 250 + 50 = 300Selling price = Rs. 450Since SP > CP so profit = 450 - 300 = 150Profit% = CPTotal profit ×100= 300150

Purchase price of wrist watch = Rs. 250Amount spent on repairs = Rs. 50Cost price of the watch = Purchase price + repair expenses= 250 + 50 = 300Selling price = Rs. 450Since SP > CP so profit = 450 - 300 = 150Profit% = CPTotal profit ×100= 300150

Purchase price of wrist watch = Rs. 250Amount spent on repairs = Rs. 50Cost price of the watch = Purchase price + repair expenses= 250 + 50 = 300Selling price = Rs. 450Since SP > CP so profit = 450 - 300 = 150Profit% = CPTotal profit ×100= 300150 ×100=50

Answer 2

Answer:

Answer: (1) LCM(12, 15, 21) = 420, HCF(12, 15, 21) = 3 (2) LCM(17, 23, 29) = 11339, HCF(17, 23, 29) = 1 (3) LCM(8, 9, 25) = 1800, HCF(8, 9, 25) = 1. Explanation: Follow the steps mentioned below to find the LCM of the given integer.