Find out `12-:3` and `42-:7`

Find out 42div7 .

Find the LCM of 21, 35 and 42.

Find: 8-:7/3

Find 3-:(4)/(7)

Compound ratio 3:5 and P:7 is 12:35 Find the value of 'P'.

Find: 4 3/7+7

Find the Value : 1/3 of 12

Median of 3, 7, 4, 6 and 12 is

Find the distance between the parallel lines 3x-4y=12 and 3x-4y=7

The measured mass and volume of a body are 2.42 g and 4.7 cm^(3) respectively with possible errors 0.01g and 0.1 cm^(3) . Find the maximum error in density.