Question

Amir goes to a gym and loses 10 %of his weight his mother thinks he looks too skinny now by how much percentage must amir gain weight to return to his previous weight

Answer 1

let Amirs weight be 100kg

Amir goes to a gym and loses 10 %of his weight

∴ his weight now is 90 kg

now Amir wants to go back to his previous weight 100kg

his increase in weight will be [100- 90] =10kg

∴ his increase % is 10/90*100

⇒11.1% must amir gain weight to return to his previous weight      ans

plz mark brainly if it is helpful to u

Answer 2

let Amirs weight is x

Amir  loses 10 %of his weight

∴ now his weight  is 9x/10 kg

now he wants to go back to his x kg weight

so he has to increase his weight by [x- 9x/10] =x/10 kg

∴ his increase % is x/10/9x/10*100 =100/9 =11.11%

⇒11.11% increase in weight      ans