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.
More Profit and loss Questions
tan 20Ëš x tan 23Ëš x tan 67Ëš x tan 70Ëš = ?
If (1+sinθ)/cosθ = x, then find the value of secθ?
1.Â
if 7 sin 2 x + 2 cos 2 x = 4  then find tan x
If cot2A = tan(A+6Ëš ) Â , find the value of A? Given that 2A and A+6Ëš Â are acute angles.
What is the value of cos [(180 – θ)/2] cos [(180 – 9θ)/2] + sin [(180 – 3θ)/2] sin [(180 – 13θ)/2]?
- If X = 15°, find the value of:
sin²(4X) + cos²(3X) - tan²(2X) - Find the value of sin²40° + sin²50° + cos²60° + cos²30°.
If sec²x + csc²x = 10, find the value of tan²x + cot²x.
Relevant for Exams:
