Algebra Solved Practice MCQs

Question:

If 2x + 5y = 18 and x = 4 then what is the value of y?

1. 2
2. 3
3. 4
4. 5
5. 6

Solution

Put the value of x in the equation. 2(4) + 5y = 18 5y = 18 – 8 Y = 10/5 = 2

A is the best response.

Question:

In All Pakistan Weight Lifting competition in Multan, double of first lift of Mr. Sahiwal was 150 kilograms more than his second lift and the sum of two lifts was 375 kilograms. What was the weight of his first lift?

1. 300
2. 350
3. 175
4. 100

Solution

L is the weight of first lift and P is the weight of the second lift. Based on given conditions you have the equation 2L = P + 150 and L + P = 375

C is the best response.

Question:

^ of N is defined as five subtracted from twice the N. What is the value of ^7.

1. 7
2. 5
3. 14
4. 9

Solution

Given function is ^N = 2N – 5 So, ^7 = 2×7 – 5 = 14 – 5 = 9

D is the best response.

Question:

If three times of a number is 6 more than twice the number. What is the value of the number?

1. 2
2. 4
3. 6
4. 8

Solution

X is the number. Based on the given condition, the equation is 3x = 2x + 6

3x – 2x = 6

X = 6

C is the best response.