Determine if the following are in proportion.(a) 15, 45, 40, 120 (b) 33, 121, 9,96 (c) 24, 28, 36, 48(d) 32, 48, 70, 210 (e) 4, 6, 8, 12 (f) 33, 44, 75, 100

Determine if the following are in proportion. (d) 32,48,70,210

Find the value of (a + b + c) - d , if the following are in proportion. 12, 48, c, 36

Find the HCF of the following numbers : (a) 18, 48 (b) 30, 42 (c) 18, 60 (d) 27, 63 (e) 36, 84 (f) 34, 102 (g) 70, 105, 175 (h) 91, 112, 49 (i) 18, 54, 81 (j) 12, 45, 75

The mean proportional of 6 and 24 is (a)15 (b) 12 (c)8 (d) 144

The mean proportional of 6 and 24 is (a)15 (b) 12 (c)8 (d) 144

Directions: Find the wrong number in the series. 3, 8, 15, 24, 34, 48, 63 (a) 15 (b) 24 (c) 34 (d) 48 (e) 63

What is the mean of the following distribution? 54, 23, 66, 44, 79, 21, 54, 67, 29, 59 (A) 51,4 (B) 49.6 (C ) 48.4 (D) 45.3