The Total solution for NCERT class 6-12
Answer - 71 : -
Answer - 72 : -
Answer - 73 : -
To promote making oftoilets for women, an organization tried to generate awareness through (i) house calls (ii) letters and (iii)announcements. The cost for each mode per attempt is given below:
i. Rs. 50
ii. Rs. 20
iii. Rs. 40
The number of attemptsmade in three villages X, Y, and Z are given below:
(i)
(ii)
(iii)
X
400
300
100
Y
250
75
z
500
150
Find the total cost incurred by the organization for threevillages separately, using matrices.
Answer - 74 : -
There are 2 families A and B. There are 4 men, 6 women and 2children in family A, and 2 men, 2 women and 4 children in family B. Therecommend daily amount of calories is 2400 for men, 1900 for women, 1800 forchildren and 45 grams of proteins for men, 55 grams for women and 33 grams forchildren. Represent the above information using matrix. Using matrixmultiplication, Calculate the total requirement of calories and proteins foreach of the families. What awareness can you create among people about theplanned diet from this question?
Answer - 75 : -