Question

One fourth of one third of two fifth of a number is 15. What will be 50% of that number​

Answer 1

Answer:

225

Step-by-step explanation:

★ According to the question,

• One fourth of one third of two fifth of a number is 15.

To find:

• 50 % of the number = ?

Solution:

Let the number be ‘x’

Now,

$\sf{ \dfrac{1}{4} \times \dfrac{1}{3} \times \dfrac{2}{5} (x) = 15}$

$\implies \tt{ \dfrac{2x}{60} = 15}$

$\implies \sf{x = \dfrac{60 \times 15}{2} }$

$\implies \sf{x = 30 \times 15}$

$\therefore \: \boldsymbol{x = 450}$

Now 50% of this number would be:

$\sf{\dfrac{50}{100} \times 450}$

$= \dfrac{450}{2}$

$= 225$

∴ 50% of that number = 225