Question
A shopkeeper sells the Pen at the discount of 30% on its
marked price while he gets the profit of 40% on cost price of the pen. A pen marked at Rs.18 is being sold for Rs.12, what is his profit percent?Solution
ATQ, Marked price of the pen = Rs. 18 Selling price (after giving discount of 30%) = 70% of 18 = Rs. 12.6 140% of cost price = 12.6 Cost price = Rs. 9 Now when it is sold for rupees 12 Profit% = (12-9)/9 × 100 = 33.33%
If p = 24 - q - r and pq + r(q + p) = 132, then find the value of (p² + q² + r²).
((99.9 - 20.9)² + (99.9 + 20.9)² )/(99.9 x 99.9 + 20.9 x 20.9) = ?
...
Find the value of the given expression-
(4x+4 -5× 4x+2) / 15×4x – 22×4x
If 4x² + y² = 40 and x y = 6, then find the value
of 2x + y?
If p = 40 - q - r and pq + r(q + p) = 432, then find the value of (p² + q² + r²).
47.98 × 4.16 + √325 × 12.91 + ? = 79.93 × 5.91
If x + y = 4 and (1/x) + (1/y) = 24/7, then the value of (x3 + y3).
- If p = 20 - q - r and pq + r(p + q) = 154, then find the value of (p² + q² + r²).
If a = (√2 - 1)1/3, then the value of (a-1/a)3 +3(a-1/a) is:
