CSS - PMS - CCE - PCS - Mathematics
Equations
Solve: x/4 + 4 = 33.
A. 29
B. 25
C. 116
D. 33
Correct Answer: A
x/4=29=29; multiplying by 4 gives x=29.
CSS - PMS - CCE - PCS - Mathematics
Equations
Which is the larger root of x² − 6x + 5 = 0?
A. 6
B. 5
C. 1
D. 7
Correct Answer: B
x²−6x+5=(x−1)(x−5); roots are 1 and 5.
CSS - PMS - CCE - PCS - Mathematics
Equations
Solve the simultaneous equations: x + y = 29 and 2x + 4y = 78. What is x?
A. 10
B. 20
C. 29
D. 19
Correct Answer: D
Using y=29−x in the second equation gives x=19.
CSS - PMS - CCE - PCS - Mathematics
Equations
If 4x + 6 − 6 = 56, what is x?
A. 56
B. 12
C. 14
D. 16
Correct Answer: C
4x = 56 − 6 + 6 = 56; therefore x=14.
CSS - PMS - CCE - PCS - Mathematics
Equations
Solve: 8(x + 11) = 160.
A. 9
B. 11
C. 20
D. -2
Correct Answer: A
Divide by 8: x+11=20; hence x=9.
CSS - PMS - CCE - PCS - Mathematics
Equations
Solve for x: 5x + 15 = 35.
A. 4
B. 5
C. 20
D. 3
Correct Answer: A
5x = 35 − 15 = 20; x = 20 ÷ 5 = 4.
CSS - PMS - CCE - PCS - Mathematics
Equations
Solve: x/3 + 5 = 33.
A. 84
B. 31
C. 28
D. 25
Correct Answer: C
x/3=28=28; multiplying by 3 gives x=28.
CSS - PMS - CCE - PCS - Mathematics
Equations
Which is the larger root of x² − 8x + 15 = 0?
A. 8
B. 15
C. 5
D. 3
Correct Answer: C
x²−8x+15=(x−3)(x−5); roots are 3 and 5.
CSS - PMS - CCE - PCS - Mathematics
Equations
Solve the simultaneous equations: x + y = 21 and 6x + 2y = 114. What is x?
A. 3
B. 19
C. 18
D. 21
Correct Answer: C
Using y=21−x in the second equation gives x=18.
CSS - PMS - CCE - PCS - Mathematics
Equations
If 4x + 9 − 5 = 56, what is x?
A. 13
B. 15
C. 52
D. 11
Correct Answer: A
4x = 56 − 9 + 5 = 52; therefore x=13.
CSS - PMS - CCE - PCS - Mathematics
Equations
Solve: 2(x + 8) = 32.
A. 10
B. 0
C. 16
D. 8
Correct Answer: D
Divide by 2: x+8=16; hence x=8.
CSS - PMS - CCE - PCS - Mathematics
Equations
Solve for x: 8x + 21 = 45.
A. 24
B. 4
C. 3
D. 2
Correct Answer: C
8x = 45 − 21 = 24; x = 24 ÷ 8 = 3.
CSS - PMS - CCE - PCS - Mathematics
Equations
Solve: x/2 + 6 = 33.
A. 29
B. 25
C. 54
D. 27
Correct Answer: D
x/2=27=27; multiplying by 2 gives x=27.
CSS - PMS - CCE - PCS - Mathematics
Equations
Which is the larger root of x² − 10x + 25 = 0?
A. 10
B. 5
C. 6
D. 25
Correct Answer: B
x²−10x+25=(x−5)(x−5); roots are 5 and 5.
CSS - PMS - CCE - PCS - Mathematics
Equations
Solve the simultaneous equations: x + y = 30 and 5x + 4y = 137. What is x?
A. 30
B. 18
C. 17
D. 13
Correct Answer: C
Using y=30−x in the second equation gives x=17.
CSS - PMS - CCE - PCS - Mathematics
Equations
If 4x + 3 − 4 = 47, what is x?
A. 10
B. 12
C. 14
D. 48
Correct Answer: B
4x = 47 − 3 + 4 = 48; therefore x=12.
CSS - PMS - CCE - PCS - Mathematics
Equations
Solve: 3(x + 5) = 36.
A. 9
B. 2
C. 7
D. 12
Correct Answer: C
Divide by 3: x+5=12; hence x=7.
CSS - PMS - CCE - PCS - Mathematics
Equations
Solve for x: 2x + 3 = 7.
A. 2
B. 4
C. 3
D. 1
Correct Answer: A
2x = 7 − 3 = 4; x = 4 ÷ 2 = 2.
CSS - PMS - CCE - PCS - Mathematics
Equations
If x + 5 = 12, then x is:
A. 5
B. 7
C. 12
D. 17
Correct Answer: B
B: Correct because subtracting 5 from both sides gives x = 7. A: Wrong because 5 makes the sum 10, not 12. C: Wrong because 12 makes the sum 17. D: Wrong because 17 makes the sum 22.
CSS - PMS - CCE - PCS - Mathematics
Equations
15 × 12 = ?
A. 160
B. 170
C. 180
D. 190
Correct Answer: C
Correct Answer: C. 180
Fact Check: 15 × 12 = 180.
A. 160 is not correct because it is lower than the correct figure, 180.
B. 170 is not correct because it is lower than the correct figure, 180.
C. Correct — 180 is right because 15 × 12 = 180.
D. 190 is not correct because it is higher than the correct figure, 180.