Question

Help needed. Please find the mode of operation for each of the question. Please show workings​

Answer 1

36. Option B.

37. Option E.

38. Option C.

39. Option C.

40. Option A.

Explanation:

From the given diagram it is clear that the middle term is the difference between sum of left column and sum of right column.

Left column
`=4+5+9=18`

Right column
`=3+6+7=16`

Middle term
`=18-16=2`

Similarly,

`(1+8+4)-(6+1+2)=4`

Now using same pattern, we can solve each question.

In ques 36,

Middle term =
`(5+4+1)-(2+1+0)=7`

Option B is correct.

In ques 37,

Middle term =
`(7+0+4)-(6+2+2)=1`

Option E is correct.

In ques 38,

Let missing number be x.

`(x+9+7)-(7+6+5)=6`

`x+16-18=6`

`x-2=6`

`x=6+2=8`

Option C is correct.

In ques 39,

Middle term =
`(8+7+3)-(5+2+8)=3`

Option C is correct.

In ques 40,

Let missing number be y.

`(7+1+8)-(3+6+y)=5`

`16-9-y=5`

`7-5=y`

`2=y`

Option A is correct.