106. If a number x is 10% less than another number y and y is 10% more than 125, then x is equal to

1. 1. 150

   
   
   

   2. 143

   
   
   

   3. 140.55

   
   
   

   4. 123.75

   
   
   

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1. View Hint View Answer Discuss in Forum

   y =	110	× 125 = 137.5
   	100

   
   ∴ x = 90% of y
   

   =	90 × 137.5	= 123.5
   	100

   Correct Option: D

   y =	110	× 125 = 137.5
   	100

   
   ∴ x = 90% of y
   

   =	90 × 137.5	= 123.5
   	100

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107. An interval of 3 hours 40 minutes is wrongly estimated as 3 hours 45.5 minutes. The error percentage is

1. 1. 5.5%

   
   
   

   2. 5.2%

   
   
   

   3. 5%

   
   
   

   4. 2.5%

   
   
   

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1. View Hint View Answer Discuss in Forum

   Error = 5.5 minutes
   ∴ Error per cent
   

   =	5.5	× 100 = 2.5 per cent
   	3 × 60 + 40

   Correct Option: D

   Error = 5.5 minutes
   ∴ Error per cent
   

   =	5.5	× 100 = 2.5 per cent
   	3 × 60 + 40

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108. In a village, each of the 60% of families has a cow; each of the 30% of families has a buffalo and each of the 15% of families has both a cow and buffalo. In all there are 96 families in the village. How many families do not have a cow or a buffalo ?

1. 1. 20

   
   
   

   2. 24

   
   
   

   3. 26

   
   
   

   4. 28

   
   
   

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1. View Hint View Answer Discuss in Forum

   Per cent of families having either a cow or a buffalo or both = 60 + 30 – 15 = 75
   It means 25 per cent of families do not have a cow or a buffalo.
   ∴ Required number of families
   

   = 25% of 96 = 96 ×	25	= 24
   	100

   Correct Option: B

   Per cent of families having either a cow or a buffalo or both = 60 + 30 – 15 = 75
   It means 25 per cent of families do not have a cow or a buffalo.
   ∴ Required number of families
   

   = 25% of 96 = 96 ×	25	= 24
   	100

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109. Tickets for all but 100 seats in a 10,000 seat stadium were sold. Of the tickets sold, 20% were sold at half price and the remaining tickets were sold at the full price of 20. The total revenue from the ticket sales, in was

1. 1. 158400

   
   
   

   2. 178200

   
   
   

   3. 180000

   
   
   

   4. 198000

   
   
   

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1. View Hint View Answer Discuss in Forum

   Total revenue earned
   

   = ₹		9900 ×	20	× 10 + 9900 ×	80	× 2
   			100		100

   
   = ₹(19800 + 158400)
   = ₹ 178200

   Correct Option: B

   Total revenue earned
   

   = ₹		9900 ×	20	× 10 + 9900 ×	80	× 2
   			100		100

   
   = ₹(19800 + 158400)
   = ₹ 178200

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110. For every set of 19 kites sold, a vendor gives 1 kite extra, free of cost. In order to give a discount of 10%, the number of extra kites he should give in a sale of 27 kites to the nearest integer is

1. 1. 3

   
   
   

   2. 6

   
   
   

   3. 7

   
   
   

   4. 8

   
   
   

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1. View Hint View Answer Discuss in Forum

   Kites of ₹ 20 are available for ₹ 19.
   Hence, discount = 5%
   

   i.e.	1	× 100
   	20

   
   If one gets kites of 20 for 18, discount = 10%
   ∴ Required answer
   20 kites → 2 kites
   

   27 kites → =	2	× 27 ≈ 3
   	20

   Correct Option: A

   Kites of ₹ 20 are available for ₹ 19.
   Hence, discount = 5%
   

   i.e.	1	× 100
   	20

   
   If one gets kites of 20 for 18, discount = 10%
   ∴ Required answer
   20 kites → 2 kites
   

   27 kites → =	2	× 27 ≈ 3
   	20

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