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National Talent Search Examination (NTSE) 2010
Stage 1 Question Paper

National Talent Search State Level Examination 2007

Class 8 Part 2

Scholastic Aptitude Test

Mathematics

71. The sum of the first hundred odd numbers is 10000. What is the sum of the first hundred ever numbers ?
(1) 10000
(2) 20000
(3) 10001
(4) 10100

72. How many prime factors does 10000 have ?
(1) 2
(2) 4
(3) 25
(4) 100

73. A number divided by 14 gives a remainder 8. What is the remainder, if this number is divided by 7 ?
(1)1
(2)2
(3)3
(4)4

74. One-third of a tank is filled with water. When 100 liters of water is added, exactly half of it is filled. What is the total capacity of the tank, in litres ?

1)300
(2)400
(3)500
(4)600

75. The product(2-1/3)(2-3/5)(2-5/7)......(2-97/99) is equal to :
1)5/99
(2)101/99
(3)101/3
(4)97/99

76. What is the decimal form of 1/2 +1/4 + 1/8 ?
(1)0.155
(2)0.875
(3)0.825
(4)0.625

77. To decrease the area of a square by 36 percent, by what percen should each side be reduced ?
(1) 6
(2) 8
.(3) 20
(4) 36

78. In a 60 liter mixture of milk and water, the ratio of milk to water is 2 : 1. How many liters of water is to be added to this, to make this ratio 1 : 2 in the new mixture ?

(1)42
(2)56
(3)60
(4)70