3 Marks Question

Question 13 Marks

(i) In a certain code language $\$ \#^*$ means 'Shirt is clean', @ D # means 'clean and neat' and @ ? means 'neat boy', then what is the code for 'and' in this language?
(ii) If $A$ stands for ' + ' $B$ stand for ' - ', $C$ stands for ' $\times$ ', then what is the value of $(10 C 4)(A)(4 C 4) B 6$ ?

Answer

(i) Given code statements are :
(I) $ # * 'Shirt is clean'
(II) @ D # 'Clean and neat'
(III) @ ? 'neat boy'
Here, we can observe that from statements I and II, the word 'clean' is common and common code for clean is '#'. Similarly from statement II and III, the common word is 'neat' and common code for it is '@'. Now, from statement II, we can conclude that code for 'and' is 'D'.
(ii) Given, codes for letter are:
A+ (addition)
B(subtraction)
C→x (multiplication)
Hence, (10 C 4) (A) (4 C4) B6
= (10 x 4) + (4x4)-6
= 40+16-6
= 56-6
= 50
Thus, value of (10 C 4) (A) (4 C4) B6 is 50.

View full question & answer→

Question 23 Marks

(i) The son of $M$ is the father of $N$ and grandfather (Mother's father) of R.S is the daughter of $N$ and sister of $B$. On the basis of this information, how is $M$ related to $B$ ?
(ii) Shyama says that father of Rajiv's father is my father. How shyama is related to Rajiv's?

Answer

From the above chart, it can be concluded that $M$ is the (maternal) great grandfather or (maternal) great grand father of $B$, hence the gender of $M$ is not specified.
(ii) From the given information, it is clear that Rajiv's Father is the brother of Shyama. Therefore Shyama is related as father's sister (Bua) to Rajiv.

View full question & answer→

Question 33 Marks

If 'men are very busy' means, '1234', 'Busy person need encouragement' means '4567', 'encouragement is very important' means ' 3589 ' and 'Important persons are rare' means, ' 2680 ', then
(i) What is the code for 'encouragement',
(ii) According to given code, what is the code of 'Men need encouragement' ?

Answer

Given statements and their codes are as follows :
(I) Men are very busy - 1234
(II) Busy persons need encouragement - 4567
(III) Encouragement is very important - 3589
(IV) Important persons are rare -2680
(i) In second (II) and third (III) sentences, common word is 'encouragement' and common code no. is ' 5 '. Hence, number 5 stands for encouragement.
(ii) In first (I) and fourth (IV) sentences, the common word is 'are', hence 'are' stands for ' 2 ' from first (I) and third (III) sentences, 'very' stand for ' 3 ' from first (I) and second (II) sentences, 'busy' stands for ' 4 '. Hence, we get from first sentence 'Men stand for ' 1 ' similarly 'needs' stand for ' 7 '. From this, we conclude that 'Men need encouragement' will be coded as ' $157^{\prime}$.

View full question & answer→

Question 43 Marks

Out of the following, find odd man out and give reason to your answer
(i) DEHG
(ii) RSVU
(iii) XYBA
(iv) LMQP
(v) JKNM

Answer

Hence, in all the given options except (iv), the placement of alphabets is in the order $(+1,+3,-1)$. So, LMQP is odd one out.

View full question & answer→

Applied Maths 3 Marks Question

Test yourself on this topic