Búfræðingurinn - 01.01.1944, Síða 208

206
B Ú F R ÆÐINGURINN
Útdráttur úr vinnuskýrslum nemenda á Hvanneyri 1942, talií
-
H = Ilestar ■ Jarðrækt Garðrækt Búfjarrækt
Nr.
M H M H M 11
1 Ásgeir Sigurðsson 136,0 89,0 103,5 39,0 156,0 »
2 Bergmundur Stígsson 119,5 25,5 131,0 17,0 268,0 27,0
3 Bjarni Arason 105,5 31,5 89,0 27,5 736,5 54,5
4 Bogi Steingrimsson 179,0 72,0 171,0 24,5 325,5 128,5
5 Einar Sigbjörnsson 127,5 64,0 93,5 25,0 246,5 51,0
6 (ieir Sigurgeirsson 116,5 71,0 89,5 46,0 368,5 16,0
7 Guðlaugur Björgvinsson . . 166,0 142,0 167,0 » 1 76,5 37,0
8 Guðm. Garðar Brynjóifsson 151,5 56,5 114,0 22,0 315,5 30,5
9 Hallgrímur Aðalsteinsson .. 115,0 4,0 169,0 92,0 363,0 8,0
10 Ilaraldur Sigurjónsson .... 145,5 40,5 22,5 7,0 157,5 2,0
11 Húnbogi Forleifsson 132,0 46,0 142,5 39,5 233,5 38,0
12 Ingvar Steingrimsson 147,0 56,0 142,0 69,0 255,5 131,0
13 Jón Gislason 127,5 109,0 91,0 8,5 257,0 42,0
14 Jónas Helgason 187,0 52,0 230,5 37,0 216,0 100,5
15 Kjartan Jónsson 180,0 47,5 155,5 3,0 346,5 54,0
16 Kristinn Steingrimsson .... 181,5 85,0 167,0 17,0 315,0 79,0
17 Magnús Einarsson 133,0 41,0 150,5 49,5 206,5 38,0
18 Ólafur Hannesson 164,0 36,5 162,0 28,5 364,0 102,5
19 Páll Magnússon 119,5 51,0 113,5 31,0 313,5 25,0
20 Páll Pálsson 161,5 34,5 135,5 53,5 309,5 30,0
21 Sigurður Lárusson 194,0 60,5 180,0 27,0 118,5 24,5
22 Sigurjón Björnsson 90,5 7,0 105,0 38,5 839,0 52,0
23 Steindór Briem 72,5 4,5 73,5 20,5 109,5 19,0
24 l-’órarinn Sigurjónsson .... 105,5 61,5 112,5 » 302,5 34,0
25 Forsteinn Valgeirsson .... 114,0 87,5 132,0 43,5 527,5 10,0
Samtals 3471,5 1375,5 3243,0 766,0 7827,5 1134,0
liæn-i upphæð en næst stærsti hlutinn, cn sá næst stærsti sé tveim
sinnum hærri en sá minnsti.
7. Iióndi nokkur seldi % nf heyfeng sinuni, gaf % liluta afgangsins uin
veturinn, en fyrndi 200 hestburði að vori. Hve inikilia lieyja hafði
hóndinn aflað?
8. I’egar vagni er ckið svo iiratt, að al'turhjól hans snúast einu sinni
á 2% sck., kemst liann 7,5 km á 1 klukkustund. Hve langt kæmist
vagninn á 4 klukkustundum, þcgar lijól hans snúast 154 sinnum
á 5 mínútum?
9. Maður nokkur tekur lán. Ársrenta cr 4%. 3 mánuðum frá lántöku-
degi horgar hann 224,40 kr upp í láilið og rentu. En 3 mánuðum
síðar greiðir maðurinn upp lánið (ásamt rentuafgangi) með krón-
um 572.00. Hvc liátt var lánið?
10. Maður nokkur hefur hey lil sölu. 1. okt. eru honum hoðnar 20 ltr.
fyrir livern liesthurð (100 kg) út í liönd, en hann neitar þvi tilboði.
B Ú F R Æ Ð I N G U R I N N
207
í klukkustundum.
Tún Engjar Verkfæri og byggingar Ýmislegt Samtals
t M 1 H M H M H M II M H
109,5 83,0 20,5 21,0 111,0 12,0 147,0 » 783,5 244,0 1
77,0 33,0 212,0 38,5 355,5 8,0 277,5 » 1440,5 149,0 2
25,5 27,5 62,5 31,0 87,0 » 456,0 » 1562,0 172,0 3
151,0 62,5 247,0 81,0 252,0 » 262,5 » 1588,0 368,5 4
91,5 38,0 334,0 100,0 179,5 » 388,5 » 1461,0 278,0 5
145,0 45,0 292,5 14,0 75,0 18,0 383,0 » 1470,0 210,0 6
115,5 17,0 80,5 24,0 203,0 22,0 656,5 27,0 1565,0 269,0 7
180,0 53,0 173,5 46,0 92,5 12,0 356,0 » 1383,0 220,0 8
177,5 97,0 216,0 10,5 184,0 6,0 391,5 » 1616,0 217,5 9
31,5 » 74,5 » 712,0 » 374,5 » 1518,0 49,5 10
228,5 35,0 269,0 52,0 189,5 » 368,5 » 1563,5 210,5 11
97,0 92,0 193,0 31,0 287,0 9,0 233,5 » 1355,0 388,0 12
7,0 » 110,0 114,0 283,5 35,0 229,5 » 1105,5 308,5 13
100,5 52,0 147,0 46,0 237,0 27,5 249,0 » 1367,0 315,0 14
111,0 14,5 312,5 57,0 207,0 20,0 269,5 » 1582,0 196,0 15
154,5 71,0 280,5 88,0 235,5 20,0 243,5 » 1577,5 360,0 16-
97,0 34,0 283,5 69,5 153,5 4,0 346,5 62,0 1370,5 298,0 17
166,5 91,0 98.0 64,0 142,0 28,0 257,0 » 1353,5 350,5 18
124,0 76,0 175,0 64,0 282,0 » 266,5 » 1394,0 247,0 19
127,0 25,5 164,0 37,5 123,0 » 375,0 25,0 1395,5 206,0 20
96,5 18,0 294,0 » 116,5 17,0 363,0 17,0 1362,5 164,0 21
4,5 » » » 90,0 » 180,5 » 1309,5 97,5 22
127,5 16,0 273,0 44,0 365,0 » 264,5 » 1285,5 104,0 23
73,5 14,0 113,5 25,0 313,5 » 405,0 » 1426,0 134,5 24
32,5 » 144,0 73,0 201,0 » 307,0 » 1458,0 214,0 25
2651,5 995,0 4570,0 1131,0 5477,5 238,5 8051,5 131,0 35292,5 5771,0
1. marz fær hann annað tilboö, sem hann gengur að. Kostnaðurinn
við geymslu o. fl. var 200 krónur, og enn fremur léttist lieyið um 5%.
Fyrir 10% ai' livi fékk liann 15 kr. fyrir hvern hestburð, eða alls 285
kr„ en fyrir hitt fékk hann 25 kr. fyrir Iivern liestburð. Hve mikið
græddi bóndi eða tapaði á Jiví að liíða með söluna, ef gert er ráð
fyrir, að hann liefði getað ávaxtað liað fé, sem liann átti kost á að lá
1. okt., með 3% á ári?
Stœrðfrœði eldri deildar.
1. Hvert er flatarmál hrings, sem cr 14 cm að Jivermáli?
2. Ummál jafnhliða þrihyrnings er 22,5 cm. Finn flatarmál lians.
3. Finn yfirlioð kúlu, sem er 15 cm að þvermáli.
4. Hornlina feriiyrnings er 16 cm. Iívert er flatarmál hans?
5. Kolla jafnvið að ofan sem neðan tekur 6,93 lítra. Dýpt hennar er 20
cm. Hvert er þvermál hennar?