20192

Question

A {{factory}} produced {{pieces}} {{product1}} in {{month1}}.

If its production increased by {{percent}} in {{month2}}, how many {{product1}} did it produce?

Worked Solution
{{percent}} ×\times {{pieces}} = {{frac}} ×\times {{pieces}}
= {{total}}

∴\therefore {{product2}} produced in {{month2}}

= {{pieces}} + {{total}}

= {{{correctAnswer}}}

Variant 0

DifficultyLevel

588

Question

A sawmill produced 200 000 timber planks in September.

If its production increased by 30% in October, how many timber planks did it produce?

Worked Solution
30% ×\times 200 000 = 310\dfrac{3}{10} ×\times 200 000
= 60 000

∴\therefore Planks produced in October

= 200 000 + 60 000

= 260 000

Question Type

Multiple Choice (One Answer)

Variables

Variable nameVariable value
factory
sawmill
pieces
200 000
product1
timber planks
month1
September
percent
30%
month2
October
frac
$\dfrac{3}{10}$
total
60 000
product2
Planks
correctAnswer
260 000

Answers

Is Correct?Answer
x

200 060

x

206 000

x

230 000

✓

260 000

Variant 1

DifficultyLevel

588

Question

A factory produced 400 000 silicon chips in January.

If its production increased by 20% in February, how many silicon chips did it produce?

Worked Solution
20% ×\times 400 000 = 210\dfrac{2}{10} ×\times 400 000
= 80 000

∴\therefore Silicon chips produced in February

= 400 000 + 80 000

= 480 000

Question Type

Multiple Choice (One Answer)

Variables

Variable nameVariable value
factory
factory
pieces
400 000
product1
silicon chips
month1
January
percent
20%
month2
February
frac
$\dfrac{2}{10}$
total
80 000
product2
Silicon chips
correctAnswer
480 000

Answers

Is Correct?Answer
x

408 000

x

420 000

✓

480 000

x

520 000

Variant 2

DifficultyLevel

588

Question

A factory produced 200 000 face masks in April.

If its production increased by 40% in May, how many face masks did it produce?

Worked Solution
40% ×\times 200 000 = 410\dfrac{4}{10} ×\times 200 000
= 80 000

∴\therefore Face masks produced in May

= 200 000 + 80 000

= 280 000

Question Type

Multiple Choice (One Answer)

Variables

Variable nameVariable value
factory
factory
pieces
200 000
product1
face masks
month1
April
percent
40%
month2
May
frac
$\dfrac{4}{10}$
total
80 000
product2
Face masks
correctAnswer
280 000

Answers

Is Correct?Answer
x

208 000

x

240 000

✓

280 000

x

320 000

Variant 3

DifficultyLevel

588

Question

A sawmill produced 60 000 chair legs in November.

If its production increased by 10% in December, how many chair legs did it produce?

Worked Solution
10% ×\times 60 000 = 110\dfrac{1}{10} ×\times 60 000
= 6000

∴\therefore Chair legs produced in December

= 60 000 + 6000

= 66 000

Question Type

Multiple Choice (One Answer)

Variables

Variable nameVariable value
factory
sawmill
pieces
60 000
product1
chair legs
month1
November
percent
10%
month2
December
frac
$\dfrac{1}{10}$
total
6000
product2
Chair legs
correctAnswer
66 000

Answers

Is Correct?Answer
x

60 006

x

60 060

x

60 600

✓

66 000

Variant 4

DifficultyLevel

588

Question

A pharmaceutical factory produced 300 000 testing swabs in May.

If its production increased by 30% in June, how many testing swabs did it produce?

Worked Solution
30% ×\times 300 000 = 310\dfrac{3}{10} ×\times 300 000
= 90 000

∴\therefore Swabs produced in June

= 300 000 + 90 000

= 390 000

Question Type

Multiple Choice (One Answer)

Variables

Variable nameVariable value
factory
pharmaceutical factory
pieces
300 000
product1
testing swabs
month1
May
percent
30%
month2
June
frac
$\dfrac{3}{10}$
total
90 000
product2
Swabs
correctAnswer
390 000

Answers

Is Correct?Answer
x

300 900

x

309 300

x

330 000

✓

390 000