1. Twenty-one times of a positive number is less than its square by 100. The value of the positive number is (a)
a) 25
b) 26
c) 42
d) 41
2. The smallest number, which should be added to 756896 so as to obtain a multiple of 11, is (c)
a) 1
b) 2
c) 3
d) 5
3. He product of two numbers is 48. If one number equals “The number of wings of a bird plus 2 times the number of fingers on your hand divided by the number of wheels of a Tricycle”. Then the other number is (c)
a) 9
b) 10
c) 12
d) 18
4. Two pipes of length 1.5 m and 1.2 m are to be cut into equal pieces without leaving any extra length of pipes. The greatest length of the pipe pieces of the same size which can be cut from these two lengths will be (c)
a) 0.13 m
b) 0.4 m
c) 0.3 m
d) 0.41 m
5. Natu and Buchku each have a certain number of oranges. Natu says to Buchku,”If you give me 10 of your oranges, I will have twice the number of oranges left with you”. Buchku replies,”If you give me 10 of your oranges, I will have the same number of oranges as left with you”. What is the number of oranges with Natu and Buchku, respectively? (b)
a) 50, 20
b) 70, 50
c) 20, 50
d) 50, 70
