206. The value of (0.63 + 0.37) is

1. 1. 1

   
   
   

   2. 100

      99

   
   
   

   3. 99

      100

   
   
   

   4. 100

      33

   
   
   

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1. View Hint View Answer Discuss in Forum

   Expression = 0.63 + 0.37
   

   =	63	+	37	=	100
   	99		99		99

   Correct Option: B

   Expression = 0.63 + 0.37
   

   =	63	+	37	=	100
   	99		99		99

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207. 8.31+ 0.6 + 0.002 is equal to:

1. 1. 8.912

   
   
   

   2. 8.912

   
   
   

   3. 8.979

   
   
   

   4. 8.979

   
   
   

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1. View Hint View Answer Discuss in Forum

   8.31 = 8	31 − 3
   	90

   
   

   = 8	28	=	748
   	90		90

   
   

   0.6 =	6
   	9

   
   

   0.002 =	2
   	900

   
   ∴  8.31 + 0.6 + 0.002
   

   =	748	+	6	+	2
   	90		9		900

   
   

   =	748 + 600 + 2	=	8082
   	900		900

   
   

   = 8 =	8082	= 8	979 − 97
   	900		900

   
   = 0.879

   Correct Option: C

   8.31 = 8	31 − 3
   	90

   
   

   = 8	28	=	748
   	90		90

   
   

   0.6 =	6
   	9

   
   

   0.002 =	2
   	900

   
   ∴  8.31 + 0.6 + 0.002
   

   =	748	+	6	+	2
   	90		9		900

   
   

   =	748 + 600 + 2	=	8082
   	900		900

   
   

   = 8 =	8082	= 8	979 − 97
   	900		900

   
   = 0.879

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208. Given that

     0.111....=	1	;0.444
     	9

     
     is equal to :

1. 1. 1

      90

   
   
   

   2. 2

      45

   
   
   

   3. 1

      99

   
   
   

   4. 4

      99

   
   
   

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1. View Hint View Answer Discuss in Forum

   Given : 0 111.......=	1
   	9

   
   0.444......= 4 × 0.111....
   

   = 4 ×	1	=	4
   	9		9

   Correct Option: D

   Given : 0 111.......=	1
   	9

   
   0.444......= 4 × 0.111....
   

   = 4 ×	1	=	4
   	9		9

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209. 12345679 × 72 is equal to :

1. 1. 88888888

   
   
   

   2. 999999998

   
   
   

   3. 888888888

   
   
   

   4. 898989898

   
   
   

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1. View Hint View Answer Discuss in Forum

   12345679 × 72 = 888888888
   

   Correct Option: C

   12345679 × 72 = 888888888
   

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210. If we write 45 as sum of four numbers so that when 2 is added to first number, 2 subtracted from second number, third multiplied by 2 and fourth divided by 2, we get the same result, then the four numbers are :

1. 1. 1, 8, 15, 21

   
   
   

   2. 8, 12, 5, 20

   
   
   

   3. 8, 12, 10, 15

   
   
   

   4. 2, 12, 5, 26

   
   
   

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1. View Hint View Answer Discuss in Forum

   Check through options
   The numbers are :8, 12, 5, 20

   Correct Option: B

   Check through options
   The numbers are :8, 12, 5, 20

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