The sum of three times of a number and 8 is 50. Find the number?
16
14
12
17
The length of a rectangle is 3 more than its breadth. If the perimeter is 30m then its length is
3 m
6 m
9 m
10 m
LHS of the equation 2(x - 3) = 5(2 x + 4) is
2
x-3
2(x - 3)
5(2x+4)
If the LHS and RHS of an equation are interchange then their values
increase
decrease
remain the same
none of these
75o
70o
60o
65o
3 times a number exceeds 20 by 2. How do you represent this?
3 x +2 =20
3 x = 22
3 x = 16
3 x - 2 = 22
2 x + 5 = k then x =
k - 5
k - 5/2
k + 5/2
k/2 - 5
A quantity with positive sign when taken to other side of the equation, then its sign becomes
+
x
÷
-
Solution of 2 x + 5 = 13 is
9
4
-9
-4
In a triangle the three sides are x, 2 x and x +3. If the perimeter is 23 m, the largest side is
8 m
15 m
16 m
