Question

Find whole quantity if 40% of it is 1000 km.​

Answer 1

The answer is " 2500km "

Step-by-step explanation:

40 % of the whole quantity = 1000 km

1% of the whole quantity = 1000 / 40

                    = 25 km

1 % of the whole quantity = 25 km

100 % of the whole quantity =  25 * 100

                     = 2500

The whole quantity = 2500 km

Answer 2

• We have to evaluate the above expression by using the given data.

              Given data:- $40\%\times x= 1000\ km.$

              To find:-Value of given expression=?

              Solution:-

• A percentage is a fraction of an amount expressed as a particular number of hundredths of that amount.

• It is denoted by %.

• We are using the unitary method to calculate the percentage of numbers.

• Fractions can be converted into percentages and vice-versa.

         Therefore,

          $40\%\times x=1000\ km\\\\=>\frac{40}{100}\times x=1000 km \\\\=>\frac{40x}{100}=1000\ km\\\\=>40x=1000\ km \times 100\\\\=>40x=100000 \ km \\\\=>x=\frac{100000 \ km}{40}\\\\=>x=2500\ km$

       Hence we will get the whole quantity is $2500\ km.$