1.8x7.2/5.4=????? AND HOW??

see,

1.8x7.2/5.4

nw first multiply 7 4 n u will get ,

1.8 x 2/5.28

nw multiply 28 2 u will get ,

1.8 x 56 / 5

nw divide 56 by 5 u will get

1.8 x 11.2

nw multiply both n u will get the ans as ,

20.16 m i right .....