Amna and Aliya have a total of Rs. 76. After Amna spends Rs.3.24 on an eraser, she is left with 3 times as much money as Aliya. How much does Aliya have?
Anna-3.24=3*Aliya but
Anna+Aliya=76
Anna-3*Ailya=-3.24 and
Anna+Alya=76
subtracting the second equation from the fidrst.
-4*Ailya=-79.24
Ailya= 19.81 Rs
Anna: $X.
Aliya: $Y.
Eq1: x + y = 76.
x-3.24 = 3y
Eq2: x-3y = 3.24.
Multiply Eq1 by 3 and add the Eqs:
3x + 3y = 228
x - 3y = 3.24
sum: 4x = 231.24
X = 57.81.
In Eq1, replace X with 57.81 and solve for Y.
To solve this problem, we need to set up a system of equations.
Let's assume that after Amna spends Rs. 3.24 on an eraser, she is left with x amount of money. And let's assume that Aliya has y amount of money.
According to the given information, we can write two equations:
Equation 1: x = 3y (Amna is left with 3 times as much money as Aliya after spending Rs. 3.24)
Equation 2: x + y = 76 (The total amount of money they have is Rs. 76)
Now we can solve this system of equations to find the values of x and y.
Substitute x from Equation 1 into Equation 2:
3y + y = 76
4y = 76
y = 76/4
y = 19
So, Aliya has Rs. 19.