Question

40% of what number is 3?

Please explain step by step to get marked

Answer 1

40% of 7.5 is 3



Setting some number to x, we can use the equation:

0.40x = 3

To mean 0.40 of some number, x, is equal to 3; Since 0.40 is the equivalent to 40% as a decimal.

Divide both sides of the equation by 0.40:

0.40 * x / 0.40 = 3 / 0.40
x = 7.5

Answer 2

Explanation:

• We already have our first value 3 and the second value 40. Let's assume the unknown value is Y which answer we will find out.

• As we have all the required values we need, Now we can put them in a simple mathematical formula as below:

STEP 1 > 3 = 40% × Y

STEP 2 > 3 = 40/ 100 x Y

.

• Multiplying both sides by 100 and dividing both sides of the equation by 40 we will arrive at:

STEP 3 > Y = 3 × 100 / 40

STEP 4 > Y = 3 × 100 ÷ 40

STEP 5 > Y = 7.5

Hence , 40% of ( 7.5 ) is 3 .

Hope this helps you !!

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