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Reasonin Rakesh Yadav

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EXERCISE-III<br />

1. Form the following two different<br />

appearances of dice find out the<br />

number which is opposite to '5'<br />

nks vyx&vyx izdkj ds ikls mifLFkr gS bu<br />

ikls esa 5 ds foijhr dkSu lh la[;k vk;sxh\<br />

2 2<br />

5 3 3<br />

6<br />

(a) 2 (b) 3<br />

(c) 4 (d) 6<br />

2. Little wooden cubes each with a<br />

side of one inch are put together<br />

to form a solid cube with a side<br />

of three inches. This big cube is<br />

then painted red all over on the<br />

outside. When the big cube is<br />

broken up into the original little<br />

ones, how many cubes will have<br />

paint on two sides?<br />

ydM+h dk ,d NksVk ?ku ftldh izR;sd Hkqtk<br />

1 bap gS dks 3 bap ds ?ku ds lkFk j[kk tkrk<br />

gS bl izdkj cM+s ?ku dh izR;sd ckgjh lrg<br />

dks yky jax ls jaxk tkrk gS tc cM+s ?ku dks<br />

okLrfod NksVs Hkkxksa esa rksM+ fn;k tkrk gS rc<br />

?kuksa dh la[;k ftlds nks lrg jaxs gq;s gS\<br />

(a) 4 (b) 8<br />

(c) 12 (d) 0<br />

3. Two positions of a cube are<br />

given. Based on them find out<br />

which number is found opposite<br />

number 1 in the given cube.<br />

,d ?ku dh nks fLFkfr;ka n'kkZ;h xbZ gS mu ij vk/kfjr<br />

?ku dh 1 ds foijhr la[;k D;k gksxh\<br />

6 6<br />

1 2 2 3<br />

(a) 1 (b) 2<br />

(c) 3 (d) 4<br />

4. Two positions of a cubical block<br />

are given below, each face having<br />

a number of small triangles. In<br />

another position of the cube, it<br />

there is one triangle at the<br />

bottom, how many triangle will<br />

be there on the top face?<br />

,d ?ku dh nks fLFkfr;ka uhps n'kkZ;h xbZ gS<br />

izR;sd lrg ij NksVs&NksVs f=kHkqt fn;s x;s gS<br />

?ku dh nwljh fLFkfr es a ?ku ds fupyh lrg<br />

ij ,d f=kHkqt gS ?ku dh Åijh lrg ij<br />

f=kHkqtksa dh la[;k crkb,s\<br />

(a) 4 (b) 3<br />

(c) 2 (d) 5<br />

5. Choose from the four answer<br />

figures, the figure that will be<br />

formed when the question figure<br />

is folded into a box.<br />

fn;s x;s fp=k es a pkj fodYi fn;s x;s gS tc<br />

fn;s x, fp=k dks cUn fd;k tkrk gS rks buesa<br />

ls dkSu&lk ?ku cusxk\<br />

Answer Figures<br />

(a) (b) (c) (d)<br />

6. In a solid cube which is made<br />

up of 27 small cubes, two<br />

opposite sides are painted red,<br />

two painted yellow and the other<br />

two with white. How many cubes<br />

have two colours?<br />

,d Bksl ?ku dks NksV&NksVs 27 ?kuksa ls cuk;k<br />

tkrk gS nks foijhr lrg yky jax ls jaxh tkrh<br />

gS] nks ihys jax ls vkSj nwljh nks liQsn ls jaxh<br />

tkrh gS nks jaxksa ls jaxs ?kuksa dh la[;k crkb,\<br />

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

(a) 8 (b) 12<br />

(c) 16 (d) 24<br />

7. In a solid cube made up of 27<br />

small cubes, two opposite sides<br />

are painted red, two opposite<br />

sides yellow and two other sides<br />

white. How many small cubes<br />

have the colours yellow and<br />

white alone in them?<br />

,d Bksl ?ku dks NksVs&NksVs 27 ?kuks a ls feydj<br />

cuk;k tkrk gSA nks foijhr Hkqtk,sa yky jax ls<br />

jaxh gqbZ gS] vkSj nks foijhr Hkqtk,s ihys ls vkSj<br />

nks nwljh rjiQ liQsn ls jaxh tkrh gS ihys rFkk<br />

liQsn lrg ds jaxks a okys ?kuks a dh la[;k crkb;s a\<br />

(a) 4 (b) 8<br />

(c) 12 (d) 16<br />

8. Three positions of a dice are<br />

given below. Identify the number<br />

on the face opposite to 6.<br />

,d ikls ds rhu fLFkfr;ksa dks n'kkZ;k x;k gS<br />

rks 6 ds foijhr lrg dh la[;k crkb,s\<br />

3 3 4<br />

6 2 5 6 5 3<br />

(a) 1 (b) 4<br />

(c) 5 (d) 6<br />

9. A solid cube of 4 inches has been<br />

painted Red, Green, and Black<br />

on pair of opposite faces. It has<br />

been cut into one inch cubes.<br />

How many cubes have only one<br />

face painted that too only red?<br />

,d pkj bap dk Bksl ?ku yky] gjk vkSj dkys<br />

jax ls gS foijhr lrgksa ij jaxk tkrk gS ;fn<br />

blesa ls 1 bap dk ?ku dkV fy;k tkrk gS rc<br />

dsoy yky jax ls jaxs lrg okys ?kuksa dh<br />

la[;k crkb,s\<br />

(a) 4 (b) 8<br />

(c) 16 (d) 24<br />

10. A solid cube of 4 inches has been<br />

painted red, green and black on<br />

pair of opposite faces. It has<br />

been cut into one inch cubes.<br />

How many cubes have only one<br />

face painted?<br />

,d 4 bap dk Bksl ?ku yky] gjk vkSj dkys<br />

jax ls foijhr lrg ij jaxk tkrk gS bles a ls 1<br />

bap dk ?ku dkV fy;k tkrk gS rks ,d lrg<br />

ij jaxs gq, ?kuksa dh la[;k crkb,s\<br />

(a) 4 (b) 8<br />

(c) 16 (d) 24<br />

11. Position of Dices is given below:<br />

Identify the number when top is<br />

5 what will be at bottom?<br />

,d ikls dh fLFkfr;k¡ uhps nh xbZ gS ,d iklk<br />

ftldh Åijh lrg ij 5 gS rks bldh fupyh<br />

lrg ij dkSu lh la[;k gksxh\<br />

3 4 2 1 3 5 4 1 6 3 2 5<br />

(a) 6 (b) 3<br />

(c) 4 (d) 2<br />

12. Which number appear in the<br />

face opposite to the face with<br />

number 4?<br />

fn;s x;s iklksa es a 4 ds foijhr la[;k dk irk<br />

yxkb,s\<br />

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

221

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