Question
An item costs Rs.1250. It is marked up by x% and then
sold after a discount of (x – 8)%. The seller earns a profit of Rs.30. Find the marked price.Solution
ATQ, 1250 * (100 + x)/100 * (100 – (x – 8))/100 = 1250 + 30 1250 * (100 + x)/100 * (108 – x)/100 = 1280 (100 + x) * (108 – x) = 10240 10800 – 100x + 108x – x2 = 10240 x2 – 8x – 560 = 0 x2 – 28x + 20x – 560 = 0 x(x – 28) + 20(x – 28) = 0 (x – 28)(x + 20) = 0 x = +28, –20 x = 28 Marked price = 1250 * 128/100 = Rs.1600
In expression ‘S & T $ U # V @ W & Y $ Z’ how is Z related to U?
If J & I @ H + G is true then, how is G related to J?
A @ B' means 'A is the father of B'. 'A % B' means 'A is the wife of B'. 'A $ B' means 'A is the son of B'. 'A & B' means 'A is the sister of B'. If 'R ...
Statements : R < Q ≤ T > S = V, D < F ≤ Q
Conclusions : I. T > D II. F < R
If ‘W#U#T?R*S’ is true then how is T related to W?
If ‘J % K & L @ H # I % G’ is true, then how is G related to K?
If ‘E # F + D + A * B & C’ is true, then how is D related to C?
‘M $ K’ means ‘M is the mother of K’.
‘M # K’ means ‘M is the father of K’.
‘M @ K’ means ‘M is the husband of K’....
- A@B means A is married to B. A#B means B is mother of A. A$B means B is son of A. A!B means B is brother of A. If Q @ P # R @ S # T @ U $ V ! W and gender ...
If "G @ P & I % W & V # Q & K * M" is definitely true, then how is W related to K?
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