Question
If the average cost price of 25 identical shirts decreases
by Rs. 5 after replacing one shirt with a new shirt that costs Rs. 100, what was the original cost price of the replaced shirt?Solution
ATQ;
Let the cost price of each shirt be Rs. 'x'.
So, cost price of 25 shirts = Rs. 25x
ATQ:
(25x - x + 100) ÷ 25 = x - 5
Or, 24x + 100 = 25x - 125
Or, x = 225
So, the cost price of the shirt that was removed is Rs. 225.
I. 2x² - 7x + 3 = 0
II. 8y² - 14y + 5 = 0
Solve the quadratic equations and determine the relation between x and y:
Equation 1: 19x² - 88x + 100 = 0
Equation 2: 17y² - 79y + 90...
I). 5p2 Â - p - 4 = 0
II). q2 - 12q + 27 = 0
(i) 2x² – 9x + 10 = 0
(ii) 4y² – 12y + 9 = 0
In the question, two equations I and II are given. You have to solve both the equations to establish the correct relation between 'p' and 'q' and choose...
Solve the quadratic equations and determine the relation between x and y:
Equation 1: x² - 36x + 288 = 0
Equation 2: y² - 36y + 320 = 0
Solve the quadratic equations and determine the relation between x and y:
Equation 1: x² - 38x + 352 = 0
Equation 2: y² - 38y + 312 = 0
I. 2y2 + 13y + 15 = 0
II. 2x2 + 11 x + 12 = 0
I. 81x - 117√x + 40 = 0
II. 81y - 225√y + 136 = 0
I. 8x² - 74x + 165 = 0
II. 15y² - 38y + 24 = 0
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