Question

hi there....
consider this as important... nd don't ans bullish here...

Answer 1

A. 18.5.

B. 30.4.

C. 3

bro sorry but this how much I know because I haven't studded this

Answer 2

a) 3

b) 9

c) 9

d) 3

e) 1

f) 1

Step-by-step explanation:

All Explanation is written in the question, :-P

Dear, Suhra Use your Brain Too, ;)

Solution:

a) 345 = 3+4+5 = 12 = 1+2 = 3

The digital root of 345 is 3

b) 927 = 9 + 2 +7 = 18 = 1+8 = 9

The digital root of 927 is 9

c) 345 × 927 = 3 × 9 = 27 = 2+7 = 9

Rechecking,

345 × 927 = 319815 = 3+1+9+8+1+5 = 27 = 2 + 7 = 9

d) The digital root of 63x5 is 8.

[here, x is the missing no.]

According to question,

6+3+x+5 = 14+x

14 + x = 8

x = 8 - 14

x = - 6

Digital root can not be negative, So add it with 9

9-6 = 3 , The missing no. is 3

Rechecking,

6335 = 6+3+3+5 = 19 = 1+9 = 8

So, My Answer is correct.

e) 121 × 92 = 11y32

[here, y is missing no. ]

(1+2+1) × (9+2) = 1+1+y+3+2

4 × 11 = 7 + y

4 × 2 = 7 + y

8 = y + 7

8 -7 = y

1 = y

So, The missing digit is 1

f) a = 5 , b = 2

ab = 5×2 = 10 = 1

So, I think the digital root of ab is 1