Question
A shopkeeper sold an article after giving a discount of
25% and made a profit of Rs.40. Find the difference between the marked price and selling price of the article if cost price of the article is Rs.560.Solution
Selling price of the article = 560 + 40 = Rs.600 Marked price of the article = 600/0.75 = Rs.800 Required difference = 800 – 600 = Rs.200
If sin 28° = 15/17 , then tan 62° = ?
If (5x - 2y) = 170 and 4x:3y = 32:9, then find the value of (3x² + y²).
If √f + (1/√f) = 5, then find the value of f + (1/f).
If 27 (x+y)³ − 8(x−y)³ = (x + 5y) (Ax² + By² + Cxy), then what is the value of (A+B-C)?
If, 4x2 + y2 + 12x + 6y + 18 = 0, then find the value of (2x + y)/(y + 6x).
- If p = 28 - q - r and pq + r(p + q) = 231, then find the value of (p² + q² + r²).
Find the values of 'a' and 'b', so that the polynomial x3 − ax2 − 13x + b has (x−1) and (x+3) as factors:
If the ratio of the areas of two triangles is 4:3 and the ratio of their heights is 3:4, then the ratio of the lengths of their bases will be
if √1+x/121 = 13/11 then find the value of x.
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