Question

Heya...
Tina, riya, and irfan went out for lunch in restaurant. tina paid 1/4 amount of the bill and irfan paid 1/3 of the bill. riya paid the remaining bill. What part of the bill was paid by Riya.

Answer 1

$\frac{1}{4} + \frac{1}{3} + x = 1 \\ \frac{3(1) +4(1) }{12} + x = 1 \\ \frac{3 + 4}{12} + x = 1 \\ \frac{7}{12} + x = 1 \\ x = 1 - \frac{7}{12} \\ x = \frac{12 - 7}{12} \\ x = \frac{5}{12}$

Double step verification :-

$= \frac{1}{4} = 0.25 \\ = \frac{1}{3} = 0.3333..... \\ = \frac{5}{12 } = 0.41666....$

Add them you get 1 then you are right.

$= 0.25 + 0.3333... + 0.41666... \\ = 1$

__________________^____________________

Hope you understand.

mark as brainliest.

Answer 2

Answer:

5/12x

Step-by-step explanation:

Let the total amount = x

Tina paid bill = x*1/4 = x/4

Irfan paid the bill = x * ⅓ = x/3

Total amount paid by Tina and Irfan

= x/4 + x/3

=3*x + x*4/12

=3x + 4x/12

=7x/12

Riya paid amount = Total - Sum of Irfan nd Tina

= x/1 - 7x/12

= 12x - 7x /12

=5/12x is the answer