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Mathematics Past Questions

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4,407 questions JAMB 2359 WAEC 1853 NECO 179 POST_UTME 6 CUSTOM 10

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4,407 questions

Question 1 of 20 4,407 total questions

Question 1931

waec 1988

A sales girl gave a change of N1.15 to a customer instead of N1.25. Calculate her percentage error

A10%

B7%

C8.0%

D2.4%

E10%

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Question 1932

waec 1988

Find the quadratic equation whose roots are x = -2 or x = 7

Ax² + 2x - 7 = 0

Bx² - 2x + 7 = 0

Cx² + 5 +14 = 0

Dx² - 5x - 14 = 0

Ex² + 5x - 14 = 0

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Question 1933

waec 1988

Calculate the value of x in the diagram above

A18^o

B30^o

C40^o

D60^o

E15°

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Question 1934

waec 1988

A student told to draw the graph of y = x² + 4x - 6. He is then told to draw a liner graph on the same axis such that the intersection of the two graphs will give the solutions to the equation x² + 4x - 7 = 0, What is the equation of the linear graph he needs to draw?

Ax = 1

Bx = -1

Cy = 1

Dy = -1

Ex + y = 1

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Question 1935

waec 1988

Simplify (27^1/3)²

A4¹/₂

D18

E81

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Question 1936

waec 1988

If sinθ = 3/5 find tanθ for 0 < θ < 90^o

A4\5

B3\4

C5\8

D1\2

E3\8

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Question 1937

waec 1988

Points P and Q are respectively 24m north and 7m east of point R. What is the bearing of Q from P to the nearest whole degree?

A16^o

B17^o

C73^o

D106^o

E164^o

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Question 1938

waec 1988

Points P and Q respectively 24m north and 7m east point R. Calculate |PQ| in meters

A20

B24

C25

D31

E84

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Question 1939

waec 1988

The number 186,470 was corrected to 186,000. Which of the following describe the degree of approximation made?
I. to the nearest hundred II. to the nearest thousand III. to 3 significant figures IV. to 4 significant figures

AI & III only

BI & IV only

CII & III only

DII & IV only

EAll of the above

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Question 1940

waec 1988

What is the difference in longitude between P (lat. 50°N. long. 50°W) and Q (lat.50°N, long. 150°W)?

A300^o

B200^o

C130^o

D100^o

E30^o

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Question 1941

waec 1988

A ladder 9m long leans against a vertical wall, making an angle of 64° with the horizontal ground. calculate correct to one decimal place, how far the foot of the ladder is from the wall.

A4.0m

B5.8m

C7.1m

D8.1m

E18.5m

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Question 1942

waec 1988

In the diagram above, find the ratio |PQ|/|PR|

A2 : 5

B3 : 5

C2 : 3

D3 : 2

E5 : 3

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Question 1943

waec 1988

If cos 60° = 1/2, which of the following angle has cosine of -1/2?

A30^o

B120^o

C150^o

D210^o

E300^o

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Question 1944

waec 1988

A group of students took a test and the following frequency table shows the scores above

The median score is

B2.5

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Question 1945

waec 1988

A group of students took a test and the following frequency table shows the scores above

The mean score is

A1.75

C2.5

D2.75

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Question 1946

waec 1988

A group of students took a test and the following frequency table shows the scores above
Find the mode

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Question 1947

waec 1988

Find the 8th term of the A.P -3, -1, 1 ......

A13

B11

C-8

D-11

E-17

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Question 1948

waec 1988

Simplify 36\(^\frac{1}{2}\) x 64\(^{-\frac{1}{3}}\) x 5\(^0\)

B1\24

C2/3

D1¹/₂

E7¹/₂

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Question 1949

waec 1988

Express the product of 0.06 and 0.09 in standard form

A5.4 * 10^-1

B5.4*10^-2

C5.4*10^-3

D5.4*10²

E5.4*10³

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Question 1950

waec 1988

Evaluate (101.5)² - (100.5)²

B2.02

C20.02

D202

E2020

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