Question

(1) A number is increased by 10% and the decreased by 10%. Show that the net decrease is 1%.

Answer 1

heya!! mate^_^

your answer is - - - - -

let the number= 100

if increased 10%

so, the number will be

110

and then decreased 10%

10/100×110=11

110-11= 99

so, net decrease is

(100-99)= 1%

Answer 2

Question: Increase Rs.130 by 10%

Answer:Step 1

10×130/100 = Rs.130

Step 2

13+130 = Rs.143 (Ans)