Kate has a coin collection, she keeps 7 of the coins ln a box .which is only 5% of her entire collection, what is the total number of coins in kate’s coin collection?

a 12
b 14
c 120
d 140

D

Step-by-step explanation:

This basically means "7 is 5% of what number(total)".

We can directly translate this into algebra:

Note: "is" means "equal"  AND  "of" means "multiplication". Also, let the total be n

Let's write the equation.

"7 is 5% of what number(total)"

7 = 5% * n

5% means 0.05, so:

7 = 0.05 * n

n = 7/0.05 = 140

Total number of coins is 140

Option D is right.

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