Quiz about JSS 3 Practice Past Questions 1

Question 1

$$\frac{2}{5}+\frac{3}{7}=\frac{5}{12}$$

Is the answer correct?

Accepted Answer

No, you cannot add fractions with unlike denominators like that.

Answer

Yes, the problem has been correctly added.

Answer

No, 5 + 7 is not 12.

Answer

No, 2 + 3 is not 5.

Question 2

The number on the top of a fraction is called the:

Accepted Answer

numerator

Answer

denominator

Answer

fractionator

Answer

equivalent

Question 3

What is the lowest common denominator of the problem $$\frac{7}{9}-\frac{1}{6}$$ ?

Accepted Answer

$$\ \frac{ }{18}$$

Answer

$$\frac{\ }{3}$$

Answer

$$\ \frac{ }{12}$$

Answer

$$\frac{ }{54}$$

Question 4

Find the sum of $$\frac{3}{8}$$ and $$\frac{6}{7}$$

Accepted Answer

$$1\frac{13}{56}$$

Answer

$$\frac{27}{56}$$

Answer

$$\frac{9}{15}$$

Answer

$$\frac{56}{69}$$

Question 5

Convert 89_ten to base five

Accepted Answer

324five

Answer

98five

Answer

445five

Answer

423five

Question 6

Convert 37_ten to base two

Accepted Answer

100101two

Answer

11111two

Answer

101001two

Answer

122five

Question 7

Convert 232_fourto base_ten

Accepted Answer

46ten

Answer

32ten

Answer

44ten

Answer

None of the options

Question 8

Convert 11010_two to base _ten

Accepted Answer

26ten

Answer

16ten

Answer

32ten

Answer

36ten

Question 9

Factorise m³ + m²y

Accepted Answer

m2 (m + y)

Answer

m (m + y)

Answer

y (m³+ m²)

Answer

m3 + m2y

Question 10

A car travels 56km on 7litres of petrol. How far will it travel on 18litres?

Accepted Answer

144km

Answer

45km

Answer

21km

Answer

64km

Question 11

A man runs 12km in 2hours. How far will he run in 1 hour 15mins if he runs at the same speed?

Accepted Answer

$$7\frac{1}{2}\ km$$

Answer

90km

Answer

9km

Answer

$$6\frac{1}{4}\ km$$

Question 12

Find 20% of #50,000

Accepted Answer

#10,000

Answer

#100,000

Answer

#5,000

Answer

#50,000

Question 13

What is $$12\frac{1}{2}$$ % of $100,000

Accepted Answer

$12,500

Answer

$25,000

Answer

$50,500

Answer

$600,000

Question 14

Factorise 16y² - 121

Accepted Answer

( 4y + 11 ) ( 4y - 11 )

Answer

( y + 11 ) ( y - 11 )

Answer

( 4y + 1 ) ( 4y - 1 )

Answer

( 4y + 121 ) ( 4y - 121 )

Question 15

Factorize x²y² - 81

Accepted Answer

( xy + 9 ) ( xy - 9 )

Answer

( x² + 9 ) ( x² - 9 )

Answer

( y² - 9 ) ( y² + 9 )

Answer

x² ( y² - 81 )

Question 16

The weight of four girls are 45kg,35kg,40kg and 50kg. Find the average weight of the four girls.

Accepted Answer

42.5kg

Answer

170kg

Answer

$$\frac{x\ +y}{4}kg$$

Answer

85kg

Question 17

The heights of two men are x and y respectively. Find their average height.

Accepted Answer

$$\frac{x\ +\ y}{2}$$

Answer

x + y

Answer

$$\frac{x\ -\ y}{2}$$

Answer

$$\frac{x\ +\ y\ +\ z}{3}$$

Question 18

Solve the equation : $$\frac{y}{5}\ =\frac{48}{60}$$

Accepted Answer

4

Answer

6

Answer

12

Answer

$$6\frac{1}{4}$$

Question 19

Solve the equation : $$\frac{2y\ -\ 5}{6}\ =\ 5$$

Accepted Answer

$$17\frac{1}{2}$$

Answer

35

Answer

25

Answer

$$35\frac{1}{2}$$

Question 20

Solve the equation : $$\frac{b^2}{3}\ =\ 27$$

Accepted Answer

9

Answer

81

Answer

3

Answer

6561

Question 21

What is the complementary angle of 35⁰ ?

Accepted Answer

550

Answer

650

Answer

900

Answer

1450

Question 22

What is the supplementary angle of 62⁰ ?

Accepted Answer

1180

Answer

1120

Answer

1020

Answer

280

Question 23

What is the supplementary angle of y⁰ ?

Accepted Answer

( 180 - y ) ⁰

Answer

1800

Answer

180y0

Answer

( y - 180 ) ⁰

Question 24

Express 0.0030671 to three significant figures.

Accepted Answer

0.00307

Answer

307

Answer

0.00

Answer

3.07

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