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If the volume of a sphere is increased by without changing the shape, what will be the percentage increase in the surface area?

A 56.25%
B 50 %
C 28.56%
D Remains same

Fill in the blanks and select the correct option.
(i) The next term in the sequence 3, 7, 5, 9, 7, 11,.... is ___________.
(ii) The next shape following the nonagon is ___________.
(iii) The sequence which represents the number of triangles in each row of stacked triangles has ___________ numbers.

How many minimum number of right angles are formed when hour hand moves from 11 to 5?

A 1
B 2
C 3
D 4

What is the total number of angles formed in the given figure above the line AD?


A 10
B 9
C 12
D 11

A shape, in which both the diagonals are equal and bisect each other is a

A Concentric circle
B Rectangle
C Square
D None of these

There are 42 students in a class. Out of these, of the boys and of the girls come to school by bus. The total number of boys and girls of the same class who come to school by bus is 30. How many boys are there in the class?

A 20
B 24
C 26
D 16

In a class of 30 students, Harshit is placed fifth from the top whereas Kunal is placed sixth from bottom. If Ankit is exactly between Harshit and Kunal, then what is the Kunal's position from Harshit.

A 9^th
B 10^th
C 11^th
D 13^th

Pointing to a boy, Amita said, "He is the son of only daughter-in-law of my daughter's grandfather". How is that boy related to Amita?

A Nephew
B Father
C Son
D Can't be determined

Study the following statements carefully and select the correct option.
Statement-I: The missing term in the sequence 2, 6, 12, 20, ___, 42, 56, 72 is 30.
Statement-II: The difference between 4th term and 3rd term of hexagonal numbers is 18.

A Both Statement-I and Statement-II are true.
B Both Statement-I and Statement-II are false.
C Statement-I is true but Statement-II is false.
D Statement-I is false but Statement-II is true.

Which of the following statement is INCORRECT?

A A 5-digit number subtracted from another 5-digit number never gives a 4-digit number.
B A 4-digit number added to a 3-digit number always gives a 4-digit number
C A 3-digit number added to another 3-digit number sometimes give 4-digit number.
D Both (A) and (B)