-)

(222 +5 qx +y +z = ,,j102 +1022

= j1O0+100+25

=J2•= 15m

34 (a) 2xyz

2xlOxl2xlS 10x12+12x15+15x10

=

xy+yz+zx

= 2x10x12x15

450 =

=

Ratio of Profit =3:4 The amount Vinu got => 42000x-= 18000 (b) Sum of reciprocals = Sum of Numbers _19 88 Product of Numbers (b) [-x-y+ 1% = [-20-1 5+- ]°"° 100

40(b)

35 (b) If x men or y women or z boys can do a work in D days, then number of days required to cmpleet the work by 1 man, 1 women and 1 boy -~

38x1x3x4 1 x3+3x4+4x1

100% =

y

-

-

10-8 x 100% = x1 00% 8 8

Distance Speed 100+80 36x5 18

10 -

19 =2x3x4 = 24 days

18 Seconds

1

1

1 1000 =

1 +0.1 +0.01 +0.001 = 1.111 1 47(c) lfx+ -Lkthenx 2+—2-=k2 -2 a2+_

= 22_2

= 4-2 = 2 48. (b) (a+b)2 = a2+b2+2ab 42 = 7+2ab 2ab= ab=---

b2 = 222_202 ioo°,

36. (b) M1 D1= M2 D2 Next term is 109+53 = 109+125 = 234 44. (b) (n-2) 180°= 1080 1080 6 n 2 180

202 484-400 400 xl00% = 21 %

n=6+2=8

37(d)

BRAIN CRACKERS 'Analogy means 'correspondence In these type of questions, a particular relationship is given and another similar relationship has to identified from the alternatives. To answer these type of questions candidates should have thorough General Knowledge and power of reasoning. Type I Animals and young one I. Cow: Calf: Swan:_

(c)

= a2-b2 xl00%

33 43 43(c) 10 +2 -p 18 -+ 45 -* 109

M1 x 35= (M1 +10) 25 35 M1 = 25 M1 +250 10M1 =250 M1 = 25

=

49(d) a\3 = 8 3 a=8 Surface area = 6a2 = 6 x 82 = 6x 64 = 384 cm2 50. (d) If 'a articles are brought for Rs. b and b articles are sold for Rs a (a>b) then profit %

42. (d) M1 D1 H1 = M2 D2 H2 24x10x8=Mx6xlO 28 4x1dx =32 M2= 6x10

= 38x3x4

2n=-6

a+---=2

=25% 41(c) Time = -

days

(c) 0.000015= 1 5x1 06

= 3:4

= 32% discount

8 days

Dxyz

30000: 40000

Ratio of investment

(a) Cater pillar (c) Tadpole

-

ANALOGY (ii) 1:lock (c) Brood

(b) Cub (d) Cygnet

Type II

Animal/ thing and sound Lion: Roar : : Frog: (b) Trumpet (a) Neigh (d) Croak (c) Quack Type III Individual and Group Fish:Shoal : : Chicken:_

2015 M38 4f14

(b) Swarm (d) Herd

Type IV Individual and living placcs Lion: Den : : Horse: (a) Hive (c) Stable

(b) Web (d) Igloo

Type V

Quantity and unit S. Mass: Kilogram : : Energy:

L(

S (a) Newton (c) Watt

(b) Joule (d) Ohm

Type VI Individual and class Snake: Reptile: : Whale: (a) Insect (b) Amphibion (c) Mammal (d) None of these Type VII Games and place of playing Boxing: Ring: : Skating:_ (a) Court (b) Rink (c) Arena (d) Pitch Type VIII Study and Topic Entainology: Insects: :_: Fishes. (a) Ichthyology (b) Mycology (c) Haematology (d) Nephrology Type IX Things and keeping places Cloths: Wardrobe: : Guns:_ (a) Garage (b) Granary (c) Armoury (d) Hangar Type X Country and currency Japan: Yen: : Thailand:_ (a)Taka (b)Yuan (c) Kyat (d) Baht Type XI Instrument and measurement Sphygmomano meter: Blood pressure:: Lactometer:_ (a) Intensity of Earth quake (b) Pressure (c) Wind (d) Purity ofmilk Type XII Worker and working place Scientist: Laboratory: : Engineer: (a) Garage (b) Stage (c) Site (d) Ship Type XIII Product and rawmaterial Rubber: Latex:: Paper:_ (a) Ore (b) Pulp (c) Jute (d) Leather Type XIV Number Analogy 4:63: : 6:

(a)225 (c) 59

(b)215 (d) 82 Answers with explanations

l.(d) Young one of a Cow is calf. Similarly young one of a Swan is cygnet Caterpillar - Young one of a butterfly Cub - Young one of a Lion / Tiger / Bear Tadpole - Young one of a frog (d) The Sound produced by lion is 'Roar The sound produced by frog is 'Croak' Sound of horse - Neigh Sound of elephant - Trumpet Sound of duck - Quack (c) A group of fish is called shoal in the same way a group of chickens is called 'Brood' Flock -A group of sheep Swarm -A group of Bees Herd- A group of cattles (c) Lion lives in den. In the same way horse lives in stable. Hive - Dwelling place of bees Web - Dwelling place of spider Igloo - Eskimos lives in Igloo 5.(b) Kilogram is the unit of measuring mass. In the same way unit of energy is Joule. Newton - unit of force Watt - unit of power Ohm - unit of resistance (c) Snake belongs to the class 'Reptiles Similarly whale belongs to 'Mammals' Amphibian - An animal that can -live both in land and water Insect - Animals with eight legs (b) Boxing is played in Ring similarly

skating occur in Rink. Court - Badminton, Tennis Arena - Wrestling Pitch - Cricket (a) Entomology is the study of insects. Ichtyology is the study of fishes. Haematology - Study of blood Mycology - Study of fungi Nephrology - Study of Kidney (c) Clothes are kept in wardrobe. Same way guns are kept at 'Armoury' Garage - Keeping place of cars. Granary - Place where grains kept Hanger - Place where aeroplanes kept. 1O.(d) Currency of Japan is 'Yen Currency of Thailand is 'Baht' Taka - Currency of Bangladesh Yuan - Currency of China Kyat - Currency of Myanmar 11. (d) Sphygmomanometer measures blood pressure. Lectometer measures purity of milk. Intensity of earthquake is measured by seismograph. Direction and speed of wind is measured by Anemometer. Atmospheric pressure is measured by Barometer. 12.(c) Scientist works in laboratory in the same way Engineer works in site. Garage - Mechanic Stage - Actor Ship - Sailor 13.(b) Rubber is made from latex. Same way paper is made from pulp. Metal is made from ore. Sack is made from jute. Shoe is made from leather 14.(b) 4-1 - 64-1 = 63 6 3 -1 .-, 216-1 = 215