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Numerical Ability

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Numerical Ability
An Introduction To English Grammar And Languages
COMMON ERRORS
TRANSFORMATION OF SENTENCES (ACTIVE/PASSIVE)
Ordering of Sentences
Change of Speech
One Word Substitutes
Paragraph Formation
Sentence Formation
Antonyms
Change of Voice
Comprehension
Spotting Errors
Sentence Correction
Spellings
Synonyms
Verbal Analogies
Idioms and Phrases
Closet Test
Completing Statements
Ordering of Words
Selecting Words
Sentence Improvement
  1. Seven machines take 7 minutes to make 7 identical toys. At the same rate, how many minutes would it take for 100 machines to make 100 toys?
    1. 1
    2. 7
    3. 100
    4. 700
Correct Option: B

Machine × time
=
M1 × t1
Number of toysT1

=
M2 × t2
T2

∴
7 × 7
=
100 × t2
7100

∴ t2 = 7 min


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