Question

Something and its fifth part added together becomes 21.
Options:
a) 17.5
b)15.7
c)10.5
d)10.7​

Answer 1

Answer:

A- 17.5

Step-by-step explanation:

let quantity = x

▪x + \frac{1}{5} x = 21x+

5

1

x=21

▪\frac{5x + x}{5} = 21

5

5x+x

=21

▪\frac{6x}{5} = 21

5

6x

=21

▪x = 21 \times \frac{5}{6}x=21×

6

5

▪x = \frac{35}{2}x=

2

35

▪x = 17.5x=17.5

Answer 2

Answer:

a) 17.5 is the answer

hope you get the method!