1.
The expanded form of (x + y ) (x – y) is a :——
2.
Period of the decimal 2.3636363……. is :
3.
In a shooting game, if we hit a balloon, we get 50 points and if we miss the balloon, we lose 30 points. A person hits 30 balloons and misses 35 balloons. Find his net score.
4.
If two numbers are equal, then:
5.
Which of the following is a perfect square?
6.
In how many years will a certain sum becomes seven times of itself at 15% per year simple interest ?
7.
If a² – b² = 36 and a + b =4, then (a – b)² =———-
8.
If the sum of two integers is − 35 and one of them is 17, then find the other integer.
9.
If four seventh of 49% of a number is 35, find the number.
10.
Find the H.C.F of (18p²qr³), (24pq²r) and (27 p³qr²).
11.
a6 < 1000, Find the greatest possible values of the whole number 'a'.
12.
Which of the following yields maximum interest for 300 months?
13.
Find the least natural number which when divided by 6, 7, 9, 12 and 18 leaves no remainders.
14.
Which of the following is/are perfect squares?
15.
Which of the following sets is not closed under subtraction?
16.
Find the degree of q[(x³ – x²)²].
17.
If 496 x 492 = x² – 4 (x>0), then x=——–
18.
If p + q =15 and pq=54, then p – q can be
20.
A train covers the distance between two cities in 12 hours. How much time will a car take which has an average speed of 1.2 times that of the train .
