Question
There are 56 rupees in a box which contains coins of 1
rupee, 50 paise, and 25 paise. If the number of 50 paise coins is 2 times the number of 25 paise coins and 4 times that of 1 rupee, then what will be the number of 50 paise coins?Solution
ATQ-                    1rs         50p       25p                             1            4            2 Total value -1+4+2 = 7 7=56 1=8 Number of coins of 50p = 4×8×2 =64
If 27x3 - 8y3 = (3x - Ay) X (Bx2 + 4y2 + Cxy), then find the value of 3 X (2A + 6B) - 2C.
Solve the inequality:
(x − 1)/(x + 2) > 2.
Which of the following represents the solution set?
(A) x < −5
(B) −5 < x <...
In Δ ABC, ∠ B= 68° and ∠ C 32°. Sides AB and AC are produced to points D and E, respectively. The bisectors of ∠ DBC and ∠...
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What will come in place of the question mark (?) in the following series?
23, 46, ?, 184, 368, 736
If x = 19, then the value of x5 - 20x4 + 20x3 - 20x2 + 20x - 1 is
If √k + (1/√k) = 8, then find the value of k + (1/k).
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