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1
Find the value of discriminant for the equation
-22
23
-23
None of these
2
In a bag, there are coins of 25 p, 10 p and 5 p in the ratio of 1 : 2 : 3. If there is Rs. 30 in all, how many 5 p coins are there?
50
100
150
200
3
The ages of Rahul and Haroon are in the ratio 5 : 7. If four years later, the sum of their ages will be 56 years, then Rahul's present age is __________
28 years
26 years
20 years
18 years
4
Two numbers are in the ratio 5 : 3. If they differ by 18, then. The numbers are ________________
45, 27
25, 15
35, 21
65, 39
5
Express as a quadratic equation.
No, it is not a quadratic equation
6
Find the quadratic equation for the following :
None of the above
7
can be factorised as _________________
8
Anup is four times as old as his son. If the sum of their ages is 50, find their ages.
5 and 40 years.
12 , 48 years
10 and 40 years
7 and 28 years.
9
One side of a rectangle is 4cm shorter than three times the other side. Find the sides if the area of the rectangle is .
9cm, 31cm
19cm, 21cm
13cm, 27cm
11cm, 29cm
10
Two numbers are such that the ratio between them is 3 : 5. If each is increased by 10, the ratio between the new numbers so formed is 5:7. Find the original numbers.
12, 20
20, 25
15.12
11
12
The age of a man is same as his wife's age with the digits reversed. Then sum of their ages is 99 years and the man is 9 years older than his wife. The age of man and his wife is
50 years, 45 years
45 years, 54 years
54 years, 44 years
44 years, 50 years
13
The sum of ages of a son and his father is 35 years and the product of their ages is 150. Find their present ages
10 years and 25 years
5 years and 30 years
2 years, 33 years
12years, 23 years.
14
5 years ago a man was 7 times as old as his son . He will be 3 times as old as his son after 5 years. Find their present ages.
20 , 70 years
30 , 20 years
10 , 40 years
10 , 30 years
15
A group of stuydents decided to buy a tape recorder from 170 to 195 ruppes.But at the last moment two students backed out of the decision so that the remaining students had to pay 1 rupee more than they had planned, The price of the tape recorder if each student paid equal shares is:
Rs 175
Rs 180
Rs 185
Rs 190
16
Which of the following are the factors of
x(1-x)
x(x-1)(x+1)
x(1-x)(1+x)
17
A train travels at a certain average speed for a distance of 60 km and then travels a distance of 48 km at an average speed of 4 km hr more than its original speed. If it takes 5 hours to complete the total journey, what is its original average speed ?
34 km/hr
30 km/hr
20 km/hr
18
Factorize:
13b(a+2b)(a-2b)
16b(a+2b)(a-2b)
12b(a+3b)(a-3b)
11b(a+2b)(a+2b)
19
Find the value of
0
a
Both B and C
20
One of the factors of is __________________