1.
What distance will a train cover in 1.2 minute travelling at 72 km/h ?
2.
Number of terms in the expansion (a + b) (c + d) is ——–
3.
A 240 m long train running at 72 km/h crosses another train coming from opposite direction at a speed of 90 km/h in 12 seconds. Find the length of the other train.
4.
Twelve men, working at 8 hours a day, can do ½ of a piece of work in 9 days. In how many days can 24 men working at 6 hours a day can do ¾ of the same work ?
5.
For what value of K is 16x² + 24xy + K a perfect square?
6.
What is the multiplicative identity element in the set of integers?
7.
The expanded form of (x + y ) (x – y) is a :——
8.
Rs 2000 is lent out at 0.3% per month for 10 years under simple interest. Calculate the amount.
9.
What is the remainder when (2x² + 3x +7) is divided by (x + 2)?
10.
Twelve persons can make 480 toys in eight days. How many toys can 21 persons make per day?
11.
If 496 x 492 = x² – 4 (x>0), then x=——–
12.
Find the product of the values of the expression 2x² – 2x + 2 when x= -1 and x= 1.
13.
The L.C.M. of two numbers is 525 and the product of two numbers is 2625. Find the H.C.F.
14.
Find the number by which 2−6 be multiplied so that the product is 2?
15.
Find the degree of (x² – x )²
16.
15 men, working at 8 hours a day, can do two third of a piece of work in 16 days. In how many days can 18 men working at 10 hours a day do ¼ of the same work ?
17.
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.
18.
If x and y are the smallest and the greatest four digit numbers formed by using 1, 5, 0 and 9, then find y – x.
20.
( a – 1 ) ( a² + a + 1 ) = ?
