Question

LINER EQUATIONS IN TWO VARIABLES (class 10)
(1) A part of monthly hostel charges is fixed and the remaining depends on the
number of days one has taken food in the mess. When a student A takes food for
20 days she has to pay 1000 as hostel charges whereas a student B, who takes
food for 26 days, pays 1180 as hostel charges. Find the fixed charges and the
cost of food per day.


2.A fraction becomes one by 3 when I is subtracted from the numerator and it becomes
1 by 4

when 8 is added to its denominator. Find the fraction.
(iii) Yash scored 40 marks in a test, getting 3 marks for each right answer and losing 1
mark for each wrong answer. Had 4 marks been awarded for each correct answer
and 2 marks been deducted for each incorrect answer, then Yash would have
scored 50 marks. How many questions were there in the test?
(iv) Places A and B are 100 km apart on a highway. One car starts from A and another
from B at the same time. If the cars travel in the same direction at different speeds,
they meet in 5 hours. If they travel towards each other, they meet in 1 hour. What
are the speeds of the two cars?
(v) The area of a rectangle gets reduced by 9 square units, if its length is reduced by
5 units and breadth is increased by 3 units. If we increase the length by 3 units and
the breadth by 2 units, the area increases by 67 square units. Find the dimensions
of the rectangle.
solve question 2,3,4and5 by cross multiplication method.Those who will give me correct answers I will mark them as Branilist​

Answer 1

Answer:

heya mate

q. 2.

anss

A fraction becomes 1/3 when 1 is subtracted from its numerator. It becomes 1/4 when 8 is added to its denominator. Therefore, The value of x=11 and y=30

plzz mark as branlist