2021-09-17 12:34:05
ARITHMETIC
In a class of ____ students, number of girls in the class is 6 more than the number of boys in the class. The average weight of the all the students in the class is 42.25 Kg. Average weight of the boys is ____ Kg and average weight of the girls is 40 Kg.
Which of the following option satisfies the given condition?
a) 50, 42
b) 40, 45
c) 60, 45
d) 46, 42
e) None of these
The current of a stream runs with the speed of _ Km/h. A motor boat travels 120 Km downstream and 108 Km upstream in 15 hours. Speed of the motorboat in still water is _.
Which of the following options satisfy the given condition?
I) 4, 16
II) 5, 15
III) 2, 8
a) Only I
b) Only II
c) Only III
d) Both I and II
e) Both II and III
Mohana invested Rs._____ on simple interest at 8% per annum for 5 years on scheme X. She invested Rs.75000 on compound interest at 12% per annum for two years on scheme Y. Difference between the total amount got by him from scheme X and scheme Y is Rs._____.
Which of the following options satisfy the given condition?
I) 40000, 38080
II) 55000, 17080
III) 60000, 15000
a) Both I and II
b) Both II and III
c) Both I and III
d) All I, II and III
e) Only III
If the numerator of a fraction is increased by 250% and denominator of the fraction is increased by ____% the fraction becomes 2/3. The original fraction is ____.
Which of the following options satisfy the given condition?
a) 300, 5/6
b) 150, 4/5
c) 100, 3/4
d) 200, 4/7
e) None of these
Four friends Anita, Binita, Krishna and Mrinal start running around a circular field and complete one round in 4, ____, 10 and 15 seconds respectively. After __ minutes they will meet again at the starting point for the first time after they start.
Which of the following options satisfy the given condition?
a) 6, 3
b) 8, 2
c) 5, 2
d) 2, 3
e) None of these
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D
