We are given that,
Cost of standard basket = 30
Cost of premium basket = 50
Total budget = 1100
Let the number of standard baskets be S and premium baskets be P
Total number of baskets allowed is between 25 and 30
=> 25<= S + P <= 30
Based on the above costing we also know that,
30S + 50P = 1100
=> 3S + 5P = 110
We need to find the minimum and maximum number of premium baskets possible
We see that,
S = (110-5P) / 3 => S should be divisible by 3 since we need whole baskets
So, we substitute the values of P we are given
1, 10, 13, 16, 20, 22
Out of these
1, 10, 13, 16, 22 satisfy
But S + P should be between 25 and 30
=> For 1 premium basket, we get
S = 110- 5*1/ 3 = 35
Invalid, since 36 basket is out of limit
=> For 10 premium basket, we get
S = 110-5*10 / 3 = 20
Valid since 10+20 = 30 basket satsifies the condition
=> For 13 premium basket, we get
S = 110 -5*13/3 = 15
Valid since 15+13 = 28 basket satsfies the condition
=> For 16 premium basket, we get
S = 110 - 5*16/3 = 10
Valid since 10+16 = 26 basket satsify the condition
=> FOr 22 premium basket, we get
S = 110-5*22/ 3 = 0
Invalid since 22+0 = 22 basket dont satisfy the condition
=>
Minimum = 10Maximum = 16