Three numbers are in the ratio 1:2:4 and their product is 125. The middle term is
2
7
9
5
Solution of 6.75x - 11.25 = 9x + 0.375, is
-5 1/6
-6 1/5
5 1/6
6 1/5
2 is a solution of
x + 1 = 4
x - 1 = 1
x + 2 = 2x - 1
2x - 6 = 1
The angles of a triangle are x°, x + 15° and 2x - 15°. The smallest angle of the triangle is
60°
75°
45°
15°
A polynomial is said to be linear if its deree is
3
0
1
(-1) satisfies
2x - 1 = -3
2x + 2 = -3
2x + 3 = 2
2x + 1 = 3
10 years ago, the age of B is 10 times of C. The ratio of present ages of B and C is 4:1. Find the present age of B
45
50
60
55
A simple linear eqution in one variable can be written in the form
ax + b = 0
a + b= c
ax + by = c
None
If we divide 160 into parts such that second part is 12 more than the thrice of the first part, then the two parts are
73, 321
37, 321
37, 123
73, 123
25 times the square of a number is 400. Which is the number?
8
4
12
