Please do write a clear final answer with complete solution
A patient is advised to take a 15 mg of a certain drug. He needs to take this medicine every 8 hours for 3 months. If he must not a skip once in taking his medicine, how many mg should he buy?
An architect needs materials for her new project. She needs 50,000 grams of gravel, 3,500 decagrams of sands and 140 hecrogram of stones. How many kilograms of materials does she needs to order in all?
24 hours in a day, let's assume 30 days in a month. Then in 3 months we have 3x30 = 90 days, and in 90 days we have 90 x 24 hours. He takes every 8 hours so he takes (90 x 24) / 8 times. Each time 15 mg so in total (90 x 24 x 15) / 8 mg
1 decagram is 0.1 grams, 1 hectogram is 100g, so she needs 50000 + (3500 x 0.1) + (140 x 100) grams = 64350 g. Divide be 1000 to get kg, so 64.35 kg
