4_matrix_math_exercise_solution.ipynb

Kernel: Python 3

import numpy as np

Solution 1: Convert USD revenues to INR

revenues_usd = np.array([[200,220,250],[68,79,105],[110,140,180],[80,85,90]])
revenues_inr = 75*revenues_usd
revenues_inr

array([[15000, 16500, 18750],
       [ 5100,  5925,  7875],
       [ 8250, 10500, 13500],
       [ 6000,  6375,  6750]])

Solution 2: Calculate total flowers sale every month for divine flowers shop

units_sold = np.array([[50,60,25],[10,13,5],[40,70,52]])
price_per_unit = np.array([20,30,15])

total_sales_amount = np.dot(price_per_unit,units_sold)
total_sales_amount

array([1900, 2640, 1430])