Question

Increase 120rupees by 40 percent​

Answer 1

Answer:

168rupees

Step-by-step explanation:

Increase 120rupees by 40 percent​

= 120rupees + (120rupees×40%)

= 120rupees + (120rupees×(40/100))

= 120rupees + (120rupees×0.4)

= 120rupees (1 + 0.4)

= 120rupees × 1.4

= 168rupees

Answer 2

• As per the data given in the question, we have to determine increase $120 \ Rs.$ by $40\%.$

            Given data:- $120 \ Rs. \ by \ 40\%.$  

            To find:- $120 \ Rs. \ by \ 40\%=?$

             Solution:-  

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

• It is denoted by  $\% .1 \%$ means $\frac{1}{100}.$

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

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

• Percentages are reversible. For example,  $40 \% \text { of } 30$  is the same as $30 \% \text { of } 40.$  

           $120 + Percentage increase =120 + (40\% \ttimes 120) \\=120 + 40\% \times120 \\=(1 + 40\%) \times120\\=(100\% + 40\%) \times 120 \\=140\%\times 120 \\=140\div100\times 120\\=16,800\div100\\=168.$

    Hence we will get the value of 168 rupees .