Question

please solve this question​

Answer 1

Answer:

i) 2 ii) 63/140

Step-by-step explanation:

Try to solve using board mass method

Answer 2

Answer:

2.8 is the correct answer.

Step-by-step explanation:

The property used here is BODMAS:

  -{(2/3)*(3/5)} + (5/2) - {(3/5)*(1/6)}  =  -(2/5) + (5/2) - (1/10)

Now, Taking L.C.M.,

 = (4+25-1)/10  =  28/10  =  2.8