41)The mean and mode of 5, 3, 9, 1, 9, 8, 9, 4 are m and n respectively, the value of m+n is?
42)LCM of 9, 12 and 15 is?
43)Median of \( x, 20x, \frac{x}{20}, 200x, \frac{x}{200} \) (where \( x > 0 \)) is 20, then the value of \( x \) is:
44)If \( 3^x = 9^{x-1} \), then the value of \( x \) is:
45)Mode of the data \( 19, 2, 6, 12, 12, 3, 5, 6, 18, 14, 6, 17, 2 \) is:
46)In \( \triangle ABC \), \( DE \parallel BC \), if \( AD = x + 1 \), \( DB = 3x – 1 \), \( AE = x \), and \( EC = 4x – 3 \), then the value of \( x \) is:
47)In \( \triangle ABC \), if \( AB = 6\sqrt{3} \) cm, \( AC = 12 \) cm and \( BC = 6 \) cm, then the angle \( B \) is:
48)A regular brick is in the shape of:
49)A cylinder and a cone have bases of equal radii and heights, then the ratio of volumes is:
50)The ratio of the areas of two similar triangles is equal to the ratio of the ______ their corresponding sides.
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