Question

a-) 21% de 1700 b-) 16% de 900

Answer 1

A=  X/1700 *  21/100

    100X= 35700

    X=35700/100

    X=357

B= X/900 * 16/100

     100X= 14400

     X=14400/100

     X=144

Answer 2

a)21% de 1700

 1700----100%

     x------21%

100x=1700*21

100x=35.700

x=35.700 / 100

x=357

Resposta: 21% de 1700 = 357

b)16% de 900

   900-----100%

     x--------16%

100x=900*16

100x=14.400

x=14.400 / 100

x=144

Resposta: 16% de 900 = 114