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2,359 questions JAMB 2359 WAEC 1853 NECO 179 POST_UTME 6 CUSTOM 10

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2,359 questions

Question 1 of 20 2,359 total questions

Question 651

jamb 2001

Solve the equations
m² + n² = 29
m + n = 7

A(2, 3) and ( 3, 5)

B(2, 5) and (5, 2)

C(5, 2) and ( 5, 3)

D(5, 3) and (3, 5)

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Question 652

jamb 2001

If two graphs y = px\(^2\) + q and y = 2x\(^2\) -1 intersect at x = 2, find the value of p in terms q.

A\(\frac{q-8}{7}\)

B\(\frac{7-q}{4}\)

C\(\frac{8-q}{2}\)

D\(\frac{7+q}{8}\)

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Question 653

jamb 2001

Divide: \(a^{3x} - 26a^{2x} + 156a^{x} - 216\) by \(a^{2x} - 24a^{x} + 108\).

Aa^x - 2

Ba^x + 2

Ca^x - 8

Da^x - 6

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Question 654

jamb 2001

Evaluate \(\frac{(0.14^2 \times 0.275)}{7(0.02)}\) to 3 decimal places.

A0.039

B0.385

C0.033

D0.038

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Question 655

jamb 2001

Find the principal which amounts to N5,500 at a simple interest in 5 years at 2% per annum.

AN4,900

BN5,000

CN4,700

DN4,800

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Question 656

jamb 2001

If \(x = \frac{y}{2}\),evaluate\(\left(\frac{x^{3}}{y^{3}}+\frac{1}{2}\right) \div \left(\frac{1}{2} - \frac{x^{2}}{y^{2}}\right)\)

A5/8

B5/2

C5/32

D5/16

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Question 657

jamb 2001

A car dealer bought a second-hand car for N250,000 and spent N70,000 refurbishing it. He then sold the car for N400,000. What is the percentage gain?

A60%

B32%

C25%

D20%

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Question 658

jamb 2001

Given that \(p = 1 + \sqrt{2}\) and \(q = 1 - \sqrt{2}\), evaluate \(\frac{p^{2} - q^{2}}{2pq}\).

A2(2+√2)

B-2(2+√2)

C2√2

D-2√2

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Question 659

jamb 2001

Simplify \((\sqrt[3]{64a^{3}})^{-1}\)

A4a

B1/8a

C8a

D1/4a

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Question 660

jamb 2001

Evaluate 21.05347 - 1.6324 x 0.43 to 3 decimal places

A20.980

B20.351

C20.981

D20.352

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Question 661

jamb 2000

Change 71\(_{10}\) to base 8

A107\(_{8}\)

B106\(_{8}\)

C71\(_8\)

D17\(_8\)

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Question 662

jamb 2000

Find the values of t for which the determinant of the matrix \(\begin{pmatrix}t-4 & 0 & 0\\ -1 & t+1 & 1\\3 & 4 & t-2\end{pmatrix}\) is zero.

A-4, 2, 3.

B4, -2, 3

C-4, -2, -3

D0, 2, 3

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Question 663

jamb 2000

A matrix P \(\begin{pmatrix}a & b\\ c & d\end{pmatrix}\) is such that P\(^T\) = - P, where P\(^T\) is the transpose of P. If b = 1, then P is

A\(\begin{pmatrix}0 & 1\\ -1 & 0\end{pmatrix}\)

B\(\begin{pmatrix}0 & 1\\ 1 & 0\end{pmatrix}\)

C\(\begin{pmatrix}0 & 1\\ -1 & 1\end{pmatrix}\)

D\(\begin{pmatrix}1 & -1\\ -1 & 0\end{pmatrix}\)

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Question 664

jamb 2000

The solution of the simultaneous inequalities \(2x - 2 \leq\) y and \( 2y - 2 \leq\) x is represented by

Use the diagrams above as the OPTIONS

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Question 665

jamb 2000

A ship sails a distance of 50km in the direction S50ºE and then sails in the distance of 50km in the direction N40ºE. Find the bearing of the ship from its original position.

AS90\(^0\)E

BN40\(^0\)

CS95\(^0\)E

DN85\(^0\)E

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Question 666

jamb 2000

Audu bought an article for N50,000 and sold it to Femi at a loss of x%. Femi later sold the article to Oche at a profit of 40%. If Femi made a profit of N10,000, find the value of x.

A60

B50

C40

D20

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Question 667

jamb 2000

The cumulative frequency curve represents the ages of ages of students in a school. What age group do 70% of the students belongs?

A17.5 - 20.5

B16.5 - 19.5

C15.5 - 19.5

D15.5 - 18.5

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Question 668

jamb 2000

If the diagram is the graph of y = x\(^2\), the shaded area is

A64 square units

B\(\frac{128}{3}\) square units

C32 square units

D\(\frac{64}{3}\) square units

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Question 669

jamb 2000

In the diagram, EFGH is a circle centre O. FH is a diameter and GE is a chord which meets FH at right angle at the point N. If NH = 8cm and EG = 24cm, calculate FH

A32cm

B26cm

C20cm

D16cm

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Question 670

jamb 2000

In the diagram above, if ∠RPS = 50o, ∠RPQ = 30o and PQ = QR, find the value of ∠PRS.

A80^o

B70^o

C60^o

D50^o

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