TCS Company Numerical Ability Area and Volume

Q. A square garden has fourteen posts along each side at equal interval. Find how many posts are there in all four sides:
Option
(a)56
(b)52
(c)44
(d)60

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TCS Other Question

Q. Find the greatest of the four least common multiples of 3, 5 and 7.
options
(a)1
(b)420
(c)315
(d)105
Q. Average age of students of an adult school is 40 years. 120 new students whose average age is 32 years joined the school. As a result the average age is decreased by 4 years. Find the number of students of the school after joining of the new students:
Option
(a)1200
(b)120
(c)360
(d)240