Linear Equations in One Variable Test

Result

Linear Equations in One Variable Test - 6

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Weekly Quiz Competition

Question 1
1 / -0

There are 56 students in a class. Number of boys and number of girls are in the ratio 4:3. Find the number of girls.

A
24

B
32

C
21

D
34

Solution

Let the number of boys be 4x and number of girls be 3x.

According to the question,

4x+3x=56

⇒ 7x=56

⇒ x =8

So, the number of girls = 24

And the number of boys = 32

Hence Option A is correct.
Question 2
1 / -0

Which of the following is a linear expression?

A
1+z²

B
s³

C
x+ 2

D
y⁴+y

Solution

In a linear expression, the highest power of the variable is 1.

So x + 2 is a linear expression.