Question

If y% of x is 50 and z% of y is 25 then the relation between x and z
(A) x = 2z
(B) z= 2x
(C) x = 4z
(D) z= 4x​

Answer 1

Answer:

The relation between x and z is option A  x=2z

Step-by-step explanation:

• Percentage is defined as the a fraction out of 100.
• It can be less than, equal to or greater than 100.
• y% of x is 50 can be written as

      $\frac{y}{100}x=50\\ y=\frac{5000}{x}$

• z% of y is 25 can be written as

     $\frac{z}{100} y=25\\y=\frac{2500}{z}$

• Equating both the above , one can get

      $\frac{2500}{z} =\frac{5000}{x}\\ x=2z$

Conclusion:

The relation between x and z is x=2z

Answer 2

Answer:

Step-by-step explanation: