Question

in each of the following numbers , replace ☆ by the smallest number to make it divisible by 11 :
(i) 4☆2
(ii)93☆34
(iii)57☆28
(iv)56☆2
(v)57☆1
(vi)2☆671​

Answer 1

Step-by-step explanation:

i) 4*2

(adding odd/even-positioned no. - even/odd-positioned no.)

= 0, or multiple of 11 (e.g. 11, 22, 33,...) is divisible by 11.

(4+2) - * = 0

6 - * = 0

* = 6 (answer)

ii) 93*34

(9+*+4) - (3+3)

13+* - 6 = 11

7+* = 11

* = 11 - 7

* = 4 (answer)

iii) 57*28

* = 7

iv) 56*2

* = 3

v) 57*1

* = 3

vi) 2*671

* = 2

Answer 2

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