[v!vek@rora]

Originally Posted by kamra.abhinav

hey vivek its around 32% please confirm...

Originally Posted by capriccio

hi..vivek..

is the answer somewhere near 33%...
plz confirm..

wats d formula u guys ve used??

rgds
vivek arora

Originally Posted by v!vek@rora

please reply
Find the percentage change in the area of the triangle whose 3 sides r increased by 20%, 10% & 15% respectively.

answer is - data inadequate...i was wondering whether v cn use hero's formula or not???

wat say??

rgds
vivek arora

[v!vek@rora]

Originally Posted by Ankurb

it's not simply adding 3s and 7s, previous swings are added too.
for (3,26) what will be the sequence?

yes, previous swings r added too but buddy, previous swings are also formed by addition of 3's n 7's.

rgds
vivek arora

[kamra.abhinav]

Originally Posted by v!vek@rora

wats d formula u guys ve used??

rgds
vivek arora

hey iff yu wana go by formula go by heroes....take all three sides equal...
i hve dunn it by takin arbit values for instance take an equilateral triangle....then increase the lengths respectively
newyz wts d solution??

[v!vek@rora]

Originally Posted by kamra.abhinav

hey iff yu wana go by formula go by heroes....take all three sides equal...
i hve dunn it by takin arbit values for instance take an equilateral triangle....then increase the lengths respectively
newyz wts d solution??

answer is data inadequate-cant determine as dey used 1/2*basae*height....i was wondering same whether v cn use hero's formula or nt...bt wid square root would it b possible to get d percent change???

rgds
vivek arora

[vineet.nitd]

(m)*A1+ (m-1)*A2+(m-2)*A3+... Am =99

Where, A1 to Am are either 3 or 7.

If all, were 7, then for m=5, Sum =105
and if all were 3 then, for m=7, sum=84

This shows that m must be seleceted out of 5,6 and 7

When we replace 7 with 3 or 3 with 7 there will be a change of 4 units, hence m=5 can never give sum as 99 because (105-99) is not of the form 4k.

For m=7, and all 7s, we have sum = 196. Since (196-99) is not 4k hence m=7 is not possible.

For, m=6, and all 7s, we have sum = 147. Since (147-99) is of the form 4k, and the difference is 48, we can have thje following combinations:

3,7,3,7,3,7
7,3,3,3,7,7
3,3,7,7,7,3
3,7,7,3 ,3,3
7,3,3,7,3,3

Hence 5 solutions.

[capriccio]

Originally Posted by v!vek@rora

answer is data inadequate-cant determine as dey used 1/2*basae*height....i was wondering same whether v cn use hero's formula or nt...bt wid square root would it b possible to get d percent change???

rgds
vivek arora

hi vivek..well i took an equilateral triangle of side'a'..

the new triangle has sides 1.2a,1.1a and 1.15a...and preceeded using hero's formula...

i think hero's formula can be applied..though the calculation will be tedious...but i think the data is sufficient...

[nick_17in]

guys do u ever sleep

[v!vek@rora]

Originally Posted by capriccio

hi vivek..well i took an equilateral triangle of side'a'..

the new triangle has sides 1.2a,1.1a and 1.15a...and preceeded using hero's formula...

i think hero's formula can be applied..though the calculation will be tedious...but i think the data is sufficient...

hey buddy, i ve a doubt whether v can consider triangle as an equi. triangle here and if v cant den hero's formula wont given anything.

rgds
vivek arora

[capriccio]

Originally Posted by v!vek@rora

hey buddy, i ve a doubt whether v can consider triangle as an equi. triangle here and if v cant den hero's formula wont given anything.

rgds
vivek arora

But bro..y cant we consider the triangle to be equilateral..i think we can..if there is any funda i m skeeping plz convey me..

[subu_222412]

Hello guys..Please help out with this...

In a factory one machine produces only nuts at the rate of 100 nuts per minute and needs to be cleaned for 5 mins after production of every 1000 nuts .Another machine produces only bolts at the rate of 75 bolts per minute and needs to be cleaned for 10 mins after the production of every 1500 bolts.If both machines start production at the same time ,what is the minimum duration required to produce 9000 airs of nuts and bolts??
1)130 mins
2)135mins
3)170 mins
4)180 mins