Arithmetical Operations

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41 A woman says, "If you reverse my own age, the figures represent my husband's age. He is, of course, senior to me and the difference between our ages is one-eleventh of their sum." The woman's age is

A
23 years
B
34 years
C
45 years
D
None of these

42 A girl counted in the following way on the fingers of her left hand : She started by calling the thumb 1, the index finger 2, middle finger 3, ring finger 4, little finger 5 and then reversed direction calling the ring finger 6, middle finger 7 and so on. She counted upto 1994. She ended counting on which finger ?

A
Thumb
B
Index finger
C
Middle finger
D
Ring finger

43 In a group of persons travelling in a bus, 6 persons can speak Tamil, 15 can speak Hindi and 6 can speak Giyarati. In that group, none can speak any other language. If 2 persons in the group can speak two languages and one person can speak all the three languages, then how many persons are there in the group ?

A
21
B
22
C
23
D
24

44 In a class of 60 students, the number of boys and girls participating in the annual sports is in the ratio 3 : 2 respectively. The number of girls not participating in the sports is 5 more than the number of boys not participating in the sports. If the number of boys participating in the sports is 15, then how many girls are there in the class ?

A
20
B
25
C
30
D
Data inadequate

45 The age of a father is twice that of the elder son. Ten years hence the age of the father will be three times that of the younger son. If the difference of ages of the two sons is 15 years, the age of the father is

A
50 years
B
55 years
C
60 years
D
70 years

46 In three coloured boxes - Red, Green and Blue, 108 balls are placed. There are twice as many balls in the green and red boxes combined as there are in the blue box and twice as many in the blue box as there are in the red box. How many balls are there in the green box ?

A
18
B
36
C
45
D
None of these

47 In a cricket match, five batsmen A, B, C, D and E scored an average of 36 runs. D Scored 5 more than E; E scored 8 fewer than A; B scored as many as D and E combined; and B and C scored 107 between them. How many runs did E score ?

A
62
B
45
C
28
D
20

48 I have a few sweets to be distributed. If I keep 2, 3 or 4 in a pack, I am lef with one sweet. If I keep 5 in a pack, I am left with none. What is the minimun number of sweets I can have to pack and distribute ?

A
25
B
37
C
54
D
65

49 In a family, a couple has a son and a daughter. The age of the father is three times that of his daughter and the age of the son is half of his mother. The wife is 9 years younger to her husband and the brother is seven years older than his sister. What is th^pg»fof.the mother ?

A
40 years
B
45 yearst
C
50 years
D
60 years

50 In a garden, there are 10 rows and 12 columns of mango trees. The distance between the two trees is 2 metres and a distance of one metre is left from all sides of the boundary of the garden. The length of the garden is

A
20 m
B
22 m
C
24 m
D
26 m