Question

CASE STUDY BASED - 1 Masks are an additional step to help prevent people from getting and spreading COVID-19. They provide a barrier that keeps respiratory droplets from spreading. Wear a mask and take a every day preventive actions in public settings Due to ongoing Corona virus outbreak, Wellness Medical store has started selling masks of decent ₹15 ₹20 quality. The store is selling two types of masks currently type A and type B. The cost of type A mask is Rs. 15 and of type B mask is Rs. 20. In the month of April, 2020, the store sold 100 masks for total sales of Rs. 1650

1) How many masks of each type were sold in the month of April?

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Answer 1

CASE STUDY BASED - 1 Masks are an additional step to help prevent people from getting and spreading COVID-19. They provide a barrier that keeps respiratory droplets from spreading. Wear a mask and take a every day preventive actions in public settings Due to ongoing Corona virus outbreak, Wellness Medical store has started selling masks of decent ₹15 ₹20 quality. The store is selling two types of masks currently type A and type B. The cost of type A mask is Rs. 15 and of type B mask is Rs. 20. In the month of April, 2020, the store sold 100 masks for total sales of Rs. 1650

Answer 2

Answer:

Step-by-step explanation:

Let number of type A(15 rupee)masks sold be x

and the number of type B(20 rupee)masks sold be y

According to the Question

x+y=100   (1)

{sum of the number of masks sold}

2nd case

15x+20y=1650     (2)

{Cost of 1 mask times it's cost }

After eliminating (1) and (2)

y=30

x=70

Therefore number of type A masks sold is 70 and number of type B masks sold is 30.