Answer:
12.5 cups of water
Step-by-step explanation:
25 cups of water divided by 2 equals 12.5 cups of water.
Given:
The mean age of 5 people in a room is 26 years.
A person enters the room. The mean age is now 33.
To find:
The age of the person who entered the room.
Solution:
Formula for mean:

The mean age of 5 people in a room is 26 years.



The mean age is now 33. It means, the mean age of 6 people is 33.



Now, the age of the person who entered the room is
Required age = Sum of ages of 6 people - Sum of ages of 5 people
= 
= 
Therefore, the age of the person who entered the room is 68 years.
Answer:
12, right?
Step-by-step explanation:
I think the declaration that three had spots may be a red herring meant to mislead you. If she has 7 after giving away 5, that would mean that in total, there are 12 cards.
Answer:
.
Step-by-step explanation:
Parentheses (brackets/braces) are done first according to the order of operations.
Answer A