MEDIUM
UGC NET Paper 1
IMPORTANT
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How many pairs of positive integers have G.C.D. 20 and L.C.M. 600 ?

(G.C.D.=Greatest Common Divisor, L.C.M.=Least Common Multiple)

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Important Questions on Numerical Ability

EASY
UGC NET Paper 1
IMPORTANT
General Aptitude (Theory and Practice)>Chapter 1 - Numerical Ability>Practice set>Q 6
Three satellites are vertically aligned above the North pole. One satellite orbits the earth in 12 hours, another orbits the earth in 15 hours, while the third satellite orbits the earth in 8 hours. In how long will the satellites again be vertically aligned above the North pole?
EASY
UGC NET Paper 1
IMPORTANT
General Aptitude (Theory and Practice)>Chapter 1 - Numerical Ability>Practice set>Q 7
The capacity of two drums is 120 litres and 56 litres respectively. The capacity of a container which can exactly measure of the two drums, is
MEDIUM
UGC NET Paper 1
IMPORTANT
General Aptitude (Theory and Practice)>Chapter 1 - Numerical Ability>Practice set>Q 8
Amit, Bijender and Chandu go walking round a circle 1 km in circumference at the rates of 10 m/min, 20 m/min and 40 m/min respectively. If they all start together and walk in the same direction, when will they be together at the same place?
MEDIUM
UGC NET Paper 1
IMPORTANT
General Aptitude (Theory and Practice)>Chapter 1 - Numerical Ability>Practice set>Q 9
In a colony of 100 blocks of flats numbering 1 to 100, a school van stops at every sixth block while a school bus stops at every tenth block. On which stops will both of them stop if they start from the entrance of the colony?
EASY
UGC NET Paper 1
IMPORTANT
General Aptitude (Theory and Practice)>Chapter 1 - Numerical Ability>Practice set>Q 10
A gardener was asked to plant flowers in a row containing an equal number of plants. He tried to plant 6, 8, 10 and 12 in each row, but 5 plants left in each case but when he planted 13 in a row, no plant was left. Find the least number of plants with him.
MEDIUM
UGC NET Paper 1
IMPORTANT
General Aptitude (Theory and Practice)>Chapter 1 - Numerical Ability>Practice set>Q 1
The average of 6 numbers is 3.95. The average of two of them is 3.4, while the average of the other two is 3.85. What is the average of the remaining two numbers?
MEDIUM
UGC NET Paper 1
IMPORTANT
General Aptitude (Theory and Practice)>Chapter 1 - Numerical Ability>Practice set>Q 2
The average of four positive integers is 72.5. The highest integer is 117 and the lowest integer is 15. The difference between the remaining two integers is 12. Which is the higher of these two remaining integers?
EASY
UGC NET Paper 1
IMPORTANT
General Aptitude (Theory and Practice)>Chapter 1 - Numerical Ability>Practice set>Q 3
Suppose the sum of the seven positive numbers is 21. What is the minimum possible value of the average of the squares of these numbers?