1400 = Deposited money
210 = Gained money
1400 + 210 = 1610 Amount of money in savings account
Choosing 4 men from seven can be done in 7C4 = 35 ways
(There are 7 to choose from then 6 and 5 and 4 = 7 x 6 x 5 x 4
but we don’t want them in order so we need to divide by 4! = 4 x 3 x 2 x 1)
Similarly choosing 4 women from 11 can be done in 11C4 = 330 ways.
Total number of ways to choose 4 men and 4 women = 35 x 330 = 11550
Do this.
38 divided by two
then use the equation
38=5+2x
There’s nothing so let’s just go with C