1.
Find the fourth proportional of 36, 45 and 28.
2.
Subtract 3x – 2y + 7 from the sum of 6 – 3y + x and y + 2x + 1.
3.
If 'n' is a natural number then n(n+1)(n+2) is always divisible by :
4.
A number 'n' is said to be 'perfect' if the sum of all its divisors (excluding 'n' itself ) is equal to n . An example of a perfect number is:
5.
Is it possible to have product of sum and difference of two numbers as −33? If yes, find the difference of the two numbers.
7.
3a : 4b : 6c , Find a : b : c
8.
LCM of the group of given numbers is more than the greatest of these numbers.
10.
The internal angle of a regular polygon is 135°. What the figure known as?
13.
What is the remainder obtained when a prime number greater than 6 is divided by 6 ?
14.
Which of the following are three distinct integers such that the sum of their reciprocals is an integer ?
15.
√0.9 =? maximum up to two decimals.
16.
Simplify: ½ √(6² + 8²) + ³√343
17.
The product of two numbers is 336. Their sum exceeds their difference by 32. What are the numbers ?
18.
What the point of intersection of the medians of a triangle called ?
19.
100 million is equal to :
20.
The area of a rectangle is 80 sq. m and its one side is 8m. Find the area of the square with perimeter equal to the given rectangle.
