Question

1. In a class of 12 students, 7 have dogs, 5 have cats and 2 have dogs AND cats.
How many students have dogs OR cats?

2. When your son is born, to save for his college fees, you decide to deposit $100 monthly in an annuity account, that pays 5% interest rate. How much will you have in the account when the child is 18 years old.

3. The price of a condominium is $175,000. The bank requires a 15% down payment.
The cost of the condominium is financed with a 30-year fixed-rate mortgage at 5% interest. The required down payment is

Answer 1

Answer:

its so many question there how i solve it plzz say

Answer 2

Answer:

5 people in total don't have any pet's.

Here is the explaination, only dog is with 5 student, only cat is with 7 students, only parrot is with 1 student . If add these we will get sum as 13.

Now addition to this we also have 4 student who have dogs and cats both, 3 student with parrot and cat, 1 student with dog and parrot. Now if sum these we will get 8. Now add the number of students who has only one pet and add the number of students who have two pets. i.e 13+8=21.

This means 21 is the total number of the students who have pets. Now to know the number of student who don't have any pet just 26–21=5.

Only 5 student don't have any pet's. Hope this answer is grasped by every individual mind's.