cExams.net
Test # 118


1.
A certain number of men can finish a piece of work in 100 days. If however, there were 10 men less, it would take 10 days more for the work to be finished. How many men were there originally ?

Login/Register to access massive collection of FREE questions and answers.
Login/Register

Quantitative Aptitude
Quiz Index
1300 questions in 130 tests. Each test contains 10 questions.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130

Idiom of the Day

turn on (someone)
to suddenly become hostile to someone
My coworker used to be my friend but he suddenly turned on me last summer.
  • Best Cricketer
  • Rules to play Kickball
  • New Year Games
  • Ways To Live Differently
  • Healthy Head
  • Cricket Kit

  • World Architecture

    Great Zimbabwe

    Republic of Zimbabwe, Africa
    The ruins of Great Zimbabwe Bantu forstone house stand about 17 miles 30 kilometers southeast of the modern provincial capital, Masvingo, and east of the Kalahari Desert between the Zambezi and Limpopo Rivers. They cover about 200 acres 80 hectares. The largest of about 300 such sites in the region, Great Zimbabwe was once the greatest city in sub-Saharan Africa. Misguided and racist Victoriansand others sincethought Africans incapable of such sophistication, and they therefore incorrectly concluded that ancient Phoenicians, Romans, or Hebrews created the amazing structures. The British archeologists David Randall-MacIver 1905 and Gertrude Caton-Thompson 1929 carried out excavations and discovered that the place was indeed indigenous African in origin. Their conclusions were confirmed by further investigations made by R. Summers, K. R. Robinson, and A. Whitty in 1958. The builders were ancestors of the modern Shona people of Zimbabwe. Even in ruin, Great Zimbabwe has been calledremarkable,majestic,awe-inspiring, andtimeless when intact, it was an architectural masterpiece. Now known as the Great Zimbabwe National Monument, the site was inscribed on UNESCOs World Heritage List in 1986. The area was first settled by Bantu-speaking farmers, perhaps in the second and third centuries a.d. A second phase of occupation began about a.d. 330. The grasslands in the foothills of the Mashonaland plateau provided excellent pasture, and between 500 and 1000 the cattle-herding Gokomere people overran and absorbed the earlier inhabitants. Rich local gold deposits were later utilized, and it seems that some stone walls were built toward the end of that period. Scholars remain divided on how the Mwenemutapa of Great Zimbabwe attained their high lifestyle and widespread influence. Some believe that it came from cattle wealth and coastal trade in gold with contacts as far afield as India and China. Others suggest that a powerful politico-religious ideologygave them a competitive edge over neighbors so that they could coerce the human resources needed to build their city. But as yet there is no evidence that their success depended upon a single factor. Anyway, between the thirteenth and fifteenth centuries Great Zimbabwe, capital of the wealthiest society in the region, dominated the area that now encompasses eastern Zimbabwe, Botswana, Mozambique, and South Africa. There were three main groups of buildings: they are now designated the Hill Complex, the Great Enclosure, and the Valley Complex. The approximately oval Hill Complex ca, a.d. 1250 was clearly a defensible retreat. Measuring about 330 by 150 feet 100 by 45 meters, it crowned a steep rocky prominence 260 feet 80 meters above the valley at the north end of the settlement. It comprised several enclosures connected by a network of narrow walled alleys. Drystone walls of dressed rectangular granite blocks linked the large natural outcrops to fortify a number of areas. The large western enclosure, its 20-foot-high 6.1-meter perimeter wall nearly 17 feet thick 5 meters, is thought to have been a religious precinct. The smaller eastern enclosure was probably residential, perhaps for the royal court or the chief shaman. At least three routes approached the hill from the west. Most of the buildings in the Great Enclosure at the southern edge of the site date from the early fourteenth century its elliptical perimeter wall was first built nearly 100 years later and subsequently restored a number of times. The 16-foot-thick 5-meter, 36-foot-high 11-meter wall, its drystone faces meticulously built from dressed granite the core is rubble, contains a space 840 feet 255 meters in circumference and 330 feet 100 meters across there are three unfortified doorways. The enclosure embraced a few elite residences, including the royal compound and an enigmatic 33-foot-high 10-meter conical towera solid, granite affair with a 16-foot about 5-meter base diameter. There is also a smaller tower. The rambling Valley Complex, between the other nodes of the city but closer to the Great Enclosure, dates from the early fifteenth century. It once comprised several stone-walled irregular yardsone writer calls it anarchipelagoaround the houses of more important citizens. However, most families probably lived in densely packed dhaka mud huts with thatched roofs, clustered between theseislands. More small towers, possibly of religious significance, dotted the area. The surviving masonry strongly suggests that the Zimbabweans independently evolved a technology that optimized immediately local resources. Their construction system began as a simple response to necessity and ended with sophisticated work that expressed joy in building, as it employed herringbone, chevron, and other decorative bonding, all made without mortar. Great Zimbabwe was fully occupied for about 300 years, but by the end of the fifteenth century it lay abandoned. Although grazing land was at first abundant, the poor soil could not have supported crops enough to sustain the citys increasing populationby the late fourteenth century it may have reached 18,000so some food necessarily would have been imported. By the fifteenth century Great Zimbabwes power had begun to fade, coincident with the rise of Torwa and Mutapa, the neighboring states. The reasons for its demise are unclear, but a familiar pattern is likely. Urban growth overtaxed the immediate environment, and the pressure put on resources by people and herds alike probably led to decline, resulting in social, economic, and political instability, and finally fragmentation. Many cultures have ended thus, not with a bang but a whimper.


    Chourishi Systems