If 3 mangoes cost 40.00,how much would you pay for 1 1/4 dozens?

well, 1 1/4 dozen mangoes would be

15 mangoes.

so if 3 of them cost 40.00
then 15 would cost ..... ??

(sure hope that is not $40.00 for 3 mangoes)

I guess you could do cross multiply but the first sentence wasn't clear

just use common logic

since we multiplied 3 by 5 to get 15
we have to multiply 40 by 5 to get 200
So 15 of them would cost 200

or

40/3 = x/15
3x = 600
x = 200
So, there is your cross-multiplication

or, use the Unit way:

if 3 mangoes cost 40
then 1 mangoe costs 40/3
and 15 mangoes cost 15(40/3) = 200

To calculate the cost of 1 and 1/4 dozens of mangoes, we need to start by determining the cost of one dozen mangoes. Since we know that 3 mangoes cost $40.00, we can find the cost of one mango by dividing $40.00 by 3.

$40.00 / 3 = $13.33 (rounded to two decimal places)

This means that the cost of one mango is approximately $13.33.

Next, we'll calculate the cost of one dozen mangoes by multiplying the cost of one mango by 12 (as there are 12 mangoes in a dozen).

$13.33 x 12 = $159.96 (rounded to two decimal places)

So, the cost of one dozen mangoes is approximately $159.96.

Now, we'll calculate the cost of 1 and 1/4 dozens of mangoes. To do this, we can multiply the cost of one dozen mangoes by 1.25 (which represents 1 and 1/4).

$159.96 x 1.25 = $199.95 (rounded to two decimal places)

Therefore, you would pay approximately $199.95 for 1 and 1/4 dozens of mangoes.