1. In a certain code, ‘247’ means ‘spread red carpet’; ‘236’ means ‘dust one carpet’ and ‘234’ means ‘one red carpet’. Which digit in that code means ‘dust’?
Answer - Option D
Explanation -
Here 2, 3 and 4 are recurring, so 6 must be dust.
2. I n a certain code ‘975’ means ‘Throw away garbage’; ‘528’ means ‘Give away smoking’ and
‘213’ means ‘Smoking is harmful’. Which digit in that code means ‘Give’ ?
Answer - Option B
3. In a certain code language, 134 means ‘Good and Tasty’ , 478 means ‘see good pictures’ and 729 means ‘pictures are faint’. Which of the following numerical symbols stands for ‘see’ ?
Answer - Option D
Explanation -
By comparing, we get
4 = good, 7 = pictures, 8 = see
So, 8 stands for see
Direction: (4 - 7) Read the following information carefully and answer these questions.
In a certain coding system, 816321 means ‘The brown dog frightened the cat’, 64851 means ‘The frightened cat ran away’ 7621 means ‘The cat was brown’ 341 means ‘The dog ran’.
4. What is the code for ‘the dog was frightened’ ?
A. 8263
B. 8731
C. 5438
D. None of these
Answer - Option B
Explanation -
In the problem ‘the’ is common; so ‘the’ → 1.
In 1st and 4th sentence, dog is common,
so dog → 3
Similarly ran → 4, cat → 6 was → 7 brown → 2 away → 5 and frightened → 8
So, code for ‘the dog was frightened’ is 8731.
5. What is the code for ‘frightened’ ?
Answer - Option D
Explanation -
Code for frightened is 8.
6. What is the code for ‘away’ ?
Answer - Option A
Explanation -
Code for away is 5
7. What is the code for ‘brown’ ?
Answer - Option A
Explanation -
Code for brown is 2.
8. In a code language, 256 means “You are good”, 637 means “We are bad”, 358 means “Good and bad”. Then, what is the code of ‘and’ ?
Answer - Option A
Explanation -
are = 6, 5 = good, 2 = you,
bad = 3, 7 = we, 8 = and
9. In a certain code, ‘467’ means ‘Leaves are green’; ‘485’ means ‘green is good’ and ‘639’ means ‘they are playing’. Which digit stands for ‘leaves’ in that code ?
Answer - Option C
Explanation -
Given : ‘Leaves are green’ = ‘467’ ...(i)
‘Green is good’ = ‘485’ ...(ii)
‘They are playing’ = ‘639’ ...(iii)
From equations (i) and (iii),
‘are’ is coded as ‘6’
From equations (i) and (ii),
‘green’ is coded as‘4’
From equation (i),
‘Leaves’ is coded as ‘7’.
10. I n a certain code language ‘851’ means ‘good sweet fruit’ ; ‘783’ means ‘good red rose’ and ‘341’ means ‘rose and fruit.’ Which of the following digits stands for ‘sweet’ in that language ?
Answer - Option B
Explanation -
Given : ‘good sweet fruit’ = ‘851’ ...(i)
‘good red rose’ = ‘783’ ...(ii)
‘Rose and fruit’ = ‘341’ ...(iii)
From equations (i) and (ii),
‘good’ is coded as ‘8’.
From equations (i) and (iii),
‘fruit’ is coded as ‘1’.
From equation (i),
‘Sweet’ is coded as ‘5’.
11. In a certain code language, ‘479’ means ‘fruit is sweet’ ; ‘248’ means ‘very sweet voice’ and ‘637’ means ‘eat fruit daily’. Which digit stands for ‘is’ in that code ?
A. 7
B. 9
C. 4
D. can’t determined
Answer - Option C
Explanation -
Given : ‘Fruit is sweet’ = ‘479’ ...(i)
‘Very sweet voice’ = ‘248’ ...(ii)
‘Eat fruit daily’ = ‘637’ ...(iii)
From equations (i) and (ii)
‘sweet’ is coded as ‘4’.
From equations (i) and (iii),
‘fruit’ is coded as ‘7’.
From equation (i),
‘is’ is coded as ‘9’.