We have a question: There are some lions in Londolozi at first. Lion cubs are born at the rate of 5 per month and lions die at the rate of 1 per month. If there are 148 lions in Londolozi after 1 year, how many lions were there in Londolozi at first?
And an answer: 100
So how you got the answer?
There are 5 - 1 = 4 more lions each month. There will be 4 * 12 = 48 more lions after 1 year. There were 148 - 48 = 100 lions in Londolozi at first.

We have a question: Michael loves to paint and sells his creations. He charges $100 for a large painting and $80 for a small painting. At his last art show, he sold 5 large paintings and 8 small paintings. How much did he earn in all?
And an answer: 1140
So how you got the answer?
He earned 5 x $100 = $500 for the large painting. And he earned 8 x $80 = $640 for the small paintings. Therefore, he earned a total of $500 + $640 = $1140 in all.

We have a question: In a glee club, there are two times as many female than male members. How many female members are there if there are 18 members in the club?
And an answer: 12
So how you got the answer?
The club has a female group which has twice as many members as the male group, so there are 2 + 1 = 3 groups in the club. There are 18 members in the club, which means there are 18 / 3 = 6 members per group. Since the number of female members consists of two groups, then there are 6 * 2 = 12 female members in the club.