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Reasonin Rakesh Yadav

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www.yoursmahboob.wordpress.com<br />

17. (b) There are altogether 13<br />

circles.<br />

bles a 13 o`Ùk lkFk &lkFk gSA<br />

18. (b) A<br />

G<br />

H<br />

F<br />

I<br />

E<br />

B<br />

D<br />

The triangles are:<br />

f=kHkqt gS :-<br />

AIH, AIB, BIC, CID, GIH, GIF,<br />

ECG, ACG, AIG, AIC<br />

19. (d) A<br />

B<br />

D<br />

F<br />

C<br />

The triangles are :<br />

f=kHkqt gS :-<br />

E<br />

C<br />

ABC ; ABD ; FAD ;<br />

FAE ; FDE ; AEC ;<br />

ADE ; ABE ; ADC<br />

20. (d) Four blocks are visible and<br />

one block is hidden.<br />

pkj CykWd fn[kkbZ nsrs gS rFkk ,d CykWd<br />

fn[kkbZ ugha nsrk gSA<br />

21. (c) B<br />

A<br />

C<br />

G<br />

J<br />

H<br />

I<br />

K<br />

F<br />

D<br />

E<br />

The triangles are:<br />

f=kHkqt gS :-<br />

AGB; BGH; BHC; IGH<br />

IJK ; JKE; KED ; JEF<br />

IAC ; ICD ; IFD ; IAF<br />

CAD ; DCF ; AFD ; AFC<br />

22. (d)<br />

A<br />

B<br />

E<br />

Q<br />

P<br />

C<br />

D<br />

R<br />

S<br />

F<br />

G<br />

I<br />

H<br />

W<br />

J<br />

M<br />

L<br />

<strong>Rakesh</strong> <strong>Yadav</strong> Sir<br />

T<br />

V U<br />

Each unit consists of three<br />

traingels and there are six<br />

units. So, the total number of<br />

triangles would be 18.<br />

izR;sd ;wfuV 3 f=kHkqtksa ls feydj cuk gS vkSj<br />

bles a 6 ;qfuV gS blfy, lHkh f=kHkqtksa dh<br />

la[;k 18 gksuh pkfg,A<br />

The triangles are:<br />

f=kHkqt gS:-<br />

ABD; ADC; ABC;HEF<br />

HFG; HEG; HIJ; HJK<br />

HIK ; OLM ; OMN ; OLN<br />

PRS ; PRQ ; PSQ ; TVU;<br />

TVW ; TUW<br />

23. (c)<br />

A<br />

F<br />

D<br />

I<br />

G<br />

J<br />

E<br />

B<br />

K L M N<br />

The triangles are:<br />

f=kHkqt gS :-<br />

ADE; GDE; DFG;EGH<br />

FKB; FGK; GIJ; GHN<br />

HNC; ILK; JMN; AFH<br />

DBN; GKN; EKC; ABC<br />

24. (d)<br />

A B C D E<br />

G H<br />

F<br />

I<br />

J K<br />

M<br />

L<br />

U<br />

N<br />

Q<br />

V<br />

O<br />

R<br />

W<br />

The triangles are:<br />

f=kHkqt gS :-<br />

AFB ; BFG; GBC; CKJ<br />

S<br />

P<br />

X<br />

H<br />

T<br />

K<br />

N<br />

O<br />

C<br />

Y<br />

JGF; KMJ; JCM ; ACJ<br />

ACM; HCD ; DIH ; IDE<br />

CKL ; LHI ; LKM ; LCM<br />

CLE ; CME; MON; WON<br />

RVW; QUV; NRQ ; NUW<br />

MNW; MWU; VRQ; MOP<br />

OPQ ; SWX ; XTS ; TXY<br />

PST ; PMW; PWY; MWY<br />

CJL; MAE; MAU ; MEY<br />

MUY; WPN; AEU; EAY<br />

EYU ; AUY ; MLJ ; MPN<br />

25. (d) A B<br />

F<br />

E<br />

G<br />

H<br />

I<br />

The triangles are:<br />

f=kHkqt gS :-<br />

J<br />

D<br />

AGF; GHF; FIH ; FIE<br />

AFH; AIF; FEA; FIG<br />

FEG ; FEH; BAG ; BJG<br />

CDJ ; CBD; DEI; AFB<br />

DEF;FJB; FCB ; FCD<br />

FJD; FBD<br />

26. (a)<br />

A B<br />

H<br />

G<br />

I<br />

L<br />

J<br />

F<br />

K<br />

M<br />

First of all take one block and<br />

count the number of triangles:<br />

lHkh dk igyk ,d CykWd oxZ gS vr% f=kHkqtksa<br />

dh la[;k dks fxurs gS&<br />

A<br />

I<br />

B<br />

H J<br />

The triangles are:<br />

f=kHkqt gS :-<br />

C<br />

D<br />

IAB; IJB; IAH ; IHJ<br />

AHB; ABJ; AHJ; BJH<br />

There are four such blocks.<br />

Therefore, the number of<br />

blocks.<br />

Therefore, the number of<br />

E<br />

C<br />

472 <strong>Rakesh</strong> <strong>Yadav</strong> Readers Publication Pvt. Ltd

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