A) T is Q's father | B) S is P's mother |

C) P is S's son | D) Q is T's son |

Explanation:

P, Q, R are children of same parents. So. S who is R's mother and T, who is R's father will be mother and father of all three.

However, it is not mentioned whether Q is male or female So, D cannot be definitely true.

A) wrought iron | B) steel |

C) pig iron | D) nickel steel |

Explanation:

**Wrought Iron** is the purest form of iron. It contains 0.12 to 0.25% carbon and so it is the purest form of iron.

A) 9 | B) 2 |

C) 1 | D) 8 |

Explanation:

Justification:

In the first and second statements, the common code digit is '4' and the common word is 'good'.

So, '4' stands for 'good'.

In the second and third statements, the common code digit is '7' and the common word is 'pictures'.

So, '7' means 'pictures'.

Thus, in the second statements, '8' means 'see'.

A) Rs. 4, Rs. 23 | B) Rs. 13, Rs. 17 |

C) Rs. 15, Rs. 14 | D) Rs. 17, Rs. 13 |

Explanation:

Let Rs. x be the fare of city B from city A and Rs. y be the fare of city C from city A.

Then, 2x + 3y = 77 ...(i) and

3x + 2y = 73 ...(ii)

Multiplying (i) by 3 and (ii) by 2 and subtracting, we get: 5y = 85 or y = 17.

Putting y = 17 in (i), we get: x = 13.

A) 16 | B) 18 |

C) 20 | D) 22 |

Explanation:

Let S.P. of 45 lemons be Rs. x.

Then, 80 : 40 = 120 : x or x = $\frac{40\times 120}{80}$= 60

For Rs.60, lemons sold = 45

For Rs.24, lemons sold =$\frac{45}{60}\times 24$= 18.

A) 1/2 | B) 7/15 |

C) 8/15 | D) 1/9 |

Explanation:

Let S be the sample space

Then n(S) = no of ways of drawing 2 balls out of (6+4) =$10{C}_{2}$ 10 =$\frac{10*9}{2*1}$ =45

Let E = event of getting both balls of same colour

Then,n(E) = no of ways (2 balls out of six) or (2 balls out of 4)

=$6{C}_{2}+4{C}_{2}$ = $\frac{6*5}{2*1}+\frac{4*3}{2*1}$= 15+6 = 21

Therefore, P(E) = n(E)/n(S) = 21/45 = 7/15

A) jo | B) na |

C) tod | D) lin |

Explanation:

**Justification: **

In statements A and B, the common code word is 'na' and the common word is 'water'.

So, 'na' means 'water'.

In statements B and D, the common code word is 'jo' and the common word is 'life'.

So, 'jo' means 'life'.

Thus, in statements B, 'tod' represents 'is'.