Question

2. Which pins must be knocked over to score exactly 100 points ? ​

Answer 1

Answer-

48,39,13

add them all you ll get 100

Answer 2

Given :   Pins with scores

13 , 57 , 8 , 39 , 48 , 24 and 47

To Find : Which pins must be knocked over to score exactly 100 points

Solution:

8 + 13 + 24 + 39 +  47  + 48 +  57  =  236

Nee to get Sum Exactly 100

Unit digit must be 0

Using 2 numbers

maximum possible is  95

so minimum 3 to be used

if 8  used   then 13 and 39 can be used or 24 and 48 can be used

8 + 13 + 39  = 60 ≠ 100

8 + 24 + 48 = 80  ≠ 100

if 13 is used

13  Then  8, 39 already tried ,  39 and 48 can be used

13 + 39  + 48   = 100

Similarly can be checked others

24 + 39 + 47  = 110  

24  + 39 + 57  = 120  

and only possible solution is

13 + 39  + 48   = 100

Hence 13 , 39 and 48 pins to be dropped

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