waise ye to sahi method hai....

ek line me ans wali..

aap bhi cgl 11 k toppers me se hi hnge..... right.....jaise maverick sir????

Put angle equal to 30 degrees
ek line me answer

Take right triangle wth sides 5,12,13
ek line me answer aaega

If tan .tan2 = 1, then the value of sin^2 2 + tan^2 2 is equal to
(A)3/4 (B)10/3
(C)3 3/4 (D) 3

@sharad
1st one on dis page 52
last one on dis page 96

If sin + cos = 17/13 , where 0 deg < < 90deg, then the value of sin - cos is
(A)5/17 (B)3/19
(C)7/10 (D)7/13

NihilistGhosh Says

If (x-y)=(x+y)/7=xy/4, numerical value of xy is?

NihilistGhosh Says

yeah got it, 539 is ans.

A solid cylinder has total surface area of 462 sq. cm. Curved surface area is 1/3 rd of its surface area. the cylinder's volume is
(A) 530 cm3
(B) 536 cm3
(C) 539 cm3
(D) 545 cm3

NihilistGhosh Says

type d ques properly

A solid cylinder has total surface area of 462 sq. cm. Curved surface area is 1/3 red of its the cylinder is
(A) 530 cm3
(B) 536 cm3
(C) 539 cm3
(D) 545 cm3

A solid cylinder has total surface area of 462 sq. cm. Curved surface area is 1/3 red of its the cylinder is
(A) 530 cm3
(B) 536 cm3
(C) 539 cm3
(D) 545 cm3

12cm..
formula is area of base*height

Base of a right prism is an equilateral
triangle of side 6 cm. If the volume of the
prism is 108root3cm. its height is
(A) 9cm (B) 10 cm
(C) 11 cm (D) 12 cm

Base of a right prism is an equilateral
triangle of side 6 cm. If the volume of the
prism is 108root3cm. its height is
(A) 9cm (B) 10 cm
(C) 11 cm (D) 12 cm

NihilistGhosh Says

If (x-y)=(x+y)/7=xy/4, numerical value of xy is?

NihilistGhosh Says

If (x-y)=(x+y)/7=xy/4, numerical value of xy is?

to multiply by 3 karo...to get 9...my badd...
volume of pyramid =1/3 * volume of prism

sharadk009 Says

to fir aage ka solution kaisa hoga???

Maverickm4a1 Says

yes boss...but i thought it to be prism but its asked for a pyramid....:biggrin::biggrin:

sharadk009 Says

actually me wo 24root2 hai sir.....may be isi wjh se wrong ho rhe hai ans, i've edited it now

matlab 2 * pi * r^2 = pi * r * l

>>> 2r = l...on suarring

4r^2 = r^2 + h^2
3r^2= h^2 so r:h= 1:root 3

area of base or square is (1/2)*diagonal ^2 = 1/2 * 576 *2

area of base = 576....
voulme = are of base * height...height = 1728/576 you get 3...kya lafda hai

VarshaMalik Says

mera bhi rt3 hi aaya...par option main hai hi nahi.... par l hai to rt to aayega na...

matlab 2 * pi * r^2 = pi * r * l

>>> 2r = l...on suarring

4r^2 = r^2 + h^2
3r^2= h^2 so r:h= 1:root 3

A solid is hemispherical at the bottom and
conical above. If the surface areas of the
two parts are equal, then the ratio of
radius and height of its conical part is
(A) 1 : 3 (B) 1 : 1
(C) 3 :1
(D) 1: 3

NihilistGhosh Says

My badd nahi, sachin also scores 0, we r human being aftr all... u r helping me to overcome my trigo probs that great. i shud some more ques n u need 2 help

VarshaMalik Says

method plz... calculation ya koi short-cut hai?

57600......................

Maverickm4a1 Says

right ...to multiply by 3 karo...to get 9...my badd...

NihilistGhosh Says

Sir its formula of volume of prism nt pyramid, he askd pyramid

area of base or square is (1/2)*diagonal ^2 = 1/2 * 576 *2

area of base = 576....
voulme = are of base * height...height = 1728/576 you get 3...kya lafda hai

A person has left an amount of Rs.
1,20,000 to be divided between his two
songs ages 14 years and 12 years such
that they get equal amounts when each
attains 18 years of age. If the amount gets
a simple interest of 5% per annum, the
younger sons share at percent is
(A) Rs. 48,800 (B) Rs. 57,600
(C) Rs. 62,400 (D) Rs. 84,400

sharadk009 Says

kaise aya ye ans???? plz explanation dijiyga

Base of a right pyramid is a square, length
of diagonal of the base is 24 2 m. If the
volume of the pyramid is 1728 cu.m. its
height is
(A) 7 m (B) 8 m
(C) 9 m (D) 10 m

@Sharad
height 9m

ha ...woh 16% hright hai.....
16% passed mechanical engg...and of the remainder that is 84% , 25 % passed i.e 21% of the total passed..mechanical...
ab puchta hai....dodno subjects maximum kitne log o ne pass kiye hai...

to electrical engg bachche will act as constraint ..because they are less in number...to 16% hi hai...uske upar pass hote hai..to fir elecrtical wale lafda karenge na.,..

VarshaMalik Says

x2-y2/y2 gain.... right???

VarshaMalik Says

mere hisab se 16% answer hoga.... is it right????

VarshaMalik Says

mere hisab se 16% answer hoga.... is it right????

Maverickm4a1 Says

999

Maverickm4a1 Says

is the answer 55