`12+6=15`
`18+11=?`

The distance (in km) of 40 engineers from their residence to their place of work were found as follows: "5 3 10 20 25 11 13 7 12 31 19 10 12 17 18 11 32 17 16 2 7 9 7 8 3 5 12 15 18 3 12 14 2 9 6 15 15 7 6 12" Construct a grouped frequency dist

Find the mode in each of the following data collection. d. 12, 13, 12, 15, 16, 16, 13, 12, 14, 18, 12, 12, 14, 15, 19, 12, 14

Solve : 12 x+ 15y + 18=0 18x - 7y + 86 =0

If A = {3, 6, 9, 12 , 15 , 18 , 21} , B = { 4, 8, 12 ,16 , 20 } , C = { 2, 4, 6, 8, 10 , 12 , 14 , 16 } , D = {5, 10 , 15 , 20 } ; find(i) A - B (ii) A - C (iii) A - D

Let A={3,6, 12 , 15 , 18 , 21},\ B={4,8, 12 , 16 , 20},\ C={2,4,6,8, 10 , 12 , 14 , 16}a n d\ D={5, 10 , 15 , 20} . Find: A-B

Let A={3,6, 12 , 15 , 18 , 21},\ B={4,8, 12 , 16 , 20},\ C={2,4,6,8, 10 , 12 , 14 , 16}a n d\ D={5, 10 , 15 , 20} . Find: A-C

Let A={3,6, 12 , 15 , 18 , 21},\ B={4,8, 12 , 16 , 20},\ C={2,4,6,8, 10 , 12 , 14 , 16}a n d\ D={5, 10 , 15 , 20} . Find: A-D

Let A={3,6, 12 , 15 , 18 , 21},\ B={4,8, 12 , 16 , 20},\ C={2,4,6,8, 10 , 12 , 14 , 16}a n d\ D={5, 10 , 15 , 20} . Find: B-A

Let A={3,6, 12 , 15 , 18 , 21},\ B={4,8, 12 , 16 , 20},\ C={2,4,6,8, 10 , 12 , 14 , 16}a n d\ D={5, 10 , 15 , 20} . Find: B-C

Let A={3,6, 12 , 15 , 18 , 21},\ B={4,8, 12 , 16 , 20},\ C={2,4,6,8, 10 , 12 , 14 , 16}a n d\ D={5, 10 , 15 , 20} . Find: B-D