Question

a number is first increased by 40% and then again decreased by 60% find the percentage increase or decrease on whole​

Answer 1

Answer:

let the number be 100

increase in the number =40/100×100 =40

crease in the number =40/100×100 =40number after these increased =100 + 40 =140

decrease =60% of 60

crease =60% of 60=60/100×60 =6×6 =36

crease =60% of 60=60/100×60 =6×6 =36number after 2nd decrease =40 - 36 =4

crease =60% of 60=60/100×60 =6×6 =36number after 2nd decrease =40 - 36 =4total decrease on the whole =40 + 36 =76

crease =60% of 60=60/100×60 =6×6 =36number after 2nd decrease =40 - 36 =4total decrease on the whole =40 + 36 =76and the percentage decrease on the whole =76/100 ×100 =76

Answer 2

Answer:

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