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Start learning 50% faster. Sign in nowLet the length of the edge of the cube be ‘x’ cm.
Volume of cube = x³
ATQ;
27 = x³
Or, x = 3
Area of five faces of the cube = 5x² = 5 × 3 × 3 = 45 cm²
Required cost = 45 × 25 = Rs. 1,125
I. 6x2 – 7x - 20 = 0
II. 3y2 - y - 14 = 0
LCM of 'x' and 'y' is 30 and their HCF is 1 such that {10 > x > y > 1}.
I. 2p²- (x + y) p + 3y = 0
II. 2q² + (9x + 2) = (3x + y) q
I. 3x2 – 16x + 21 = 0
II. y2 – 13y + 42 = 0
I. 2x2– 5x – 63 = 0
II. 2y2– 7y – 72 = 0
I. x² – 44x + 468 = 0
II. y² – 30y + 216 = 0
I. 5x2 – 18x + 16 = 0
II. 3y2 – 35y - 52 = 0
(i) 2x² + 14x - 16 = 0
(ii) y² – y – 12 = 0
I. x2 + 91 = 20x
II. 10y2 - 29y + 21 = 0
I. x2 - 20x + 96 = 0
II. y2 - 23y + 22 = 0
I). p2 + 8p + 15 = 0
II). q2 + 9q + 20 = 0
