9 replies [Last post]
Offline
Last seen: 7 years 1 week ago
Joined: 2007-04-20

Total time = 500/V hr
Consumption of petrol/hr = 2/2500 x V^2
Total Consumption of petrol = 2/2500 x V^2 x 500/V = 2/5 x V

Exp = 60 x 500/V + 30 x 2/5  V

To minimize exp, diff of above should be zero

12 – 30,000 * 1/ V^2 = 0

=>  V^2 = 30,000/12

=> V =  50 lt

And total exp = 600 + 600 = Rs. 1200

__________________

n/a

__________________

n/a

Varun Goel (not verified)
Q.6

Soln. a/b=c/d ...............................................(1)

squaring

a2/b2=c2/d2

adding 1 to both sides

(a2/b2)+1=(c2/d2)+1

(a2+b2)/b2=(c2+d2)/d2

(a2+b2)/(c2+d2)=b2/d2=(b/d)(b/d)

but  b/d=a/c (from 1)

therefore

(a2+b2)/(c2+d2)=(b/d)(a/c)=ab/cd

Offline
Last seen: Never ago
Joined: 2007-11-29
T=10x
S=24x
Q=60x
R=45x
P=180x

Obviously S/R cant be an integer

Ans d

Offline
Last seen: 9 years 1 week ago
Joined: 2007-07-06
Q-6.  a/b=c/d=k(let) i.e,

Q-6.  a/b=c/d=k(let) i.e, a=bk,c=dk

Now a^2 +b^2 /c^2+d^2= b^2(1+k^2)/d^2(1+k^2)= b^2/d^2

=b/d.b/d=b/d.a/c=ab/cd

Incognito
Fixed = F
Royalty = R

30,000 = F + 1000 R
50,000 = F + 2000 R

=> R = 20

And F = 10,000

When 5000 books are sold, total income = 10,000 + 20 * 5, 000 = 110, 000

Income per book = 110,000 / 5000 = 22
Offline
Last seen: Never ago
Joined: 2007-11-29
Q3

a = 1, b = 2 , c = 4

a : c = 1 : 4

a^2 : b^2 = 1 : 4

b^2 : c^2 = 1 : 4

(a^2 + b^2) : (b^2 + c^2) = 1 : 4

Offline
Last seen: 9 years 1 week ago
Joined: 2007-07-06

Given in question, a/b=b/c ----- (1)

now from (1)  , a/c= b2/c2  -----  option (a)

again , b/c=a/b =>b2/c2=a2/b2= a/c  ------ option (c)

Now from (1) , a=bk,b=ck, then a2+b2/b2+c2= a/c ----- option (b)

Hence ans - (d)

Offline
Last seen: 9 years 1 week ago
Joined: 2007-07-06

Given p=3q=4r --(1) , 2q=5s=12t -- (2)

Now combine both,  we will get 2p=6q=8r=15s=36t

again it can be written in the form , p/180=q/60=r/45=s/20=t/10= k (say)

Now match with all options which is given in question , we will find only option (d) , where it can not be integer. explaination --P/8 will be integer, but s/r= 20k/45k= not integer .

Hence option (d). Any doubt contact me on manoj.nitt@gmail.com

Offline
Last seen: 41 weeks 5 days ago
Joined: 2016-07-02
blade and soul yun costumes bns portrait of a hero

Kavalerist face Technique. Due to Collection a couple Develop 8, start using Bombardment within the victim during give consideration to little time, that will come about a lack of the interior demand. With the aid Rule, Cheap Blade & Soul Gold you will find further more effectiveness DPS. Tether Razor blade Technique. Regarding PvE, school shooting skill set feature due to choices effects is plenty. With regards to PvP, and also determine Collection two to three Develop two to three due to light headedness. Naturally , anyone 2 be in charge of, you can find dating Collection two to three Develop two to three or just Collection two to three Develop - ImprisonShortcut. Due to a few skill set stuff, destruction among Imprison may be developed, and eventually early Dragoncall or just Wingstorm each time offense the marked. EclipseShortcut It's usually seemed to totally reset generally the cooldown energy among Dragoncall RuptureShortcut. It may designed for effective dents yield, could possibly early Bombardment each time traffic the marked , BNS Gold and minimize generally the cooldown among Dragoncall via two to three little time. It is always a Warlock's principal yield know-how. Insurance coverage Background Technique.