Question
A shopkeeper earns a profit of 30% by selling an
article. What would be the approximate percent change in the profit percent, if he had paid 20% less and sold at 20% more?Solution
Original profit = 30% Let the original C.P = Rs. 100 ∴ S.P = Rs.130 Now, New C.P = Rs. 80 And New S.P = 120 % of 130 = Rs. 156 ∴ New Profit % = 76/80*100 = 95% ∴ % change in profit percent = 95-30/30*100 = 65/30*100 = 216.66% approx.
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:
