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1
One side of a rectangle is 4cm shorter than three times the other side. Find the sides if the perimeter of the rectangle is 48cm.
11cm, 13cm
10cm, 14cm
7cm, 17cm
8cm, 16cm
2
Find the value of discriminant for the equation
-1
97
None of these
3
What should be added to to make it a perfect square
5
7
8
11
4
Find the nature of the roots of
:Roots are real and equal
Roots are imaginary or complex.
Roots are real and unequal
Express as a quadratic equation.
No, it is not a quadratic equation
6
The product of two numbers is 640. Their difference is 12. Find these numbers.
12, 30
20, 32
30, 20
16, 40
if the roots of the quadratic equations are real and equal , then:
One of the two digits of a two digit number is three times the other digit. If you interchange the digits of this 2-digit number and add the resulting number to the original number, you get 88. The original number is
25, 62
62, 26
26, 52
52, 25
9
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
10
If the three numbers are in the ratio 2:3:5, so that the sum of their squares is 608. Find the numbers respectively.
8,12, 20
12, 8, 20
20, 8, 12
20,12,8
Find the quadratic equation for :
12
has
Four real roots
Two real roots
No real roots
One real root.
13
Express product as sum of two terms
14
The sum of two numbers is 2490. If 6.5% of one number is equal to 8.5% of the other, the numbers are ______________
1311, 1411
1411, 1079
1089, 1311
1079, 1089
15
A two digit number such that the product of its digits is 21. When 36 is subtracted from the number the digits are interchanged. Find the digit at the tens place.
77
-7
NONE F THESE
16
Find the values of x satisfying the equation
2,3
17
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
18
Factorize:
13b(a+2b)(a-2b)
16b(a+2b)(a-2b)
12b(a+3b)(a-3b)
11b(a+2b)(a+2b)
19
On factorisation is not equal to ______________________
20
Find the value of