Question

find the value of s 3:S::21:27​

Answer 1

Answer:

3:s :: 21: 27

Step-by-step explanation:

3/s = 21/27

by cross mltiple methord

3*27 = 21s

81=21s

s = 81 /27

s 3

Answer 2

Step-by-step explanation:

3:S::21:27​

Since,

Both are the terms of proportional,

∴                    $\frac{3}{S}$   =   $\frac{21}{27}$

 =>          3 × 27 = S × 21      (Cross Multiplication)

=>           81  = 21S

 =>          $\frac{81}{21}$   =  S

 =>          S  = $\frac{27}{7}$ (Ans)