2.
The sum of the ages of three persons is 100 years. what will be the sum of their ages after 5 years:
3.
Is it possible to have product of sum and difference of two numbers as −33? If yes, find the difference of the two numbers.
4.
HCF of the group of given numbers is less than the smallest of these numbers.
5.
Ramesh purchased few oranges at the rate ‘x’ for Rs.’y’and sold at ‘y’ for Rs.’x’. If y > x. Will there be profit or loss?
6.
What is the unit's digit of the product of all prime numbers between 1 and 100 ?
7.
Length, breadth and height of a match box is 4.5cm, 2.4cms and 1cm. What is the surface area of the match box?
8.
Define concave quadrilateral.
9.
To construct a rectangle, you must have one side and :
10.
HCF of two consecutive EVEN NUMBERS is .
11.
A man can do a work in 12 days, a woman can do the same work in 20 days and a child can do the same work in in 30 days. Who will do the work earlier? (a) Only man (b) Woman and child together
12.
Maximum retail price of a shirt is ₹1500. Its cost price is ₹1200. If net profit is 15%, find the discount percent.
13.
Each interior angle of a polygon is 135 degree. How many sides does it have ?
14.
Surface area of a cube is ⅜ X². Find its volume.
15.
The average marks of 8 students is 29. Two more candidates with 31 and 27 join them. Find the new average.
16.
Subtract 3x – 2y + 7 from the sum of 6 – 3y + x and y + 2x + 1.
17.
If 'n' is a natural number then n(n+1)(n+2) is always divisible by :
18.
If * means double of the first number added by five times the second number, then find ( 1 * 2 ) * 6.
19.
The difference between two numbers is 7 and their sum is 35. What will be their product ?
20.
How many prime numbers are there in the first 150 natural numbers?
