@shinoda said:no..share ur approach though.
haan..galat hai...meine equilateral triangle se bane cone ka volume nikal diya..
Two persons start walking on road that diverge at an angle 120. if they walk at the rate of 3km/h and 2km/h respectivly. find the distance between them after 4 hours.?
@shinoda said:IF V be the volume of a cuboid of dimension x,y,z and A is its surface area then A/V will be equal to ?a) (xyz)^2b) 1/2 (1/xy + 1/xz + 1/yz )c) 1/2 (1/x + 1/y + 1/z)d)none
d) none :|
2(xy+yz+zx)/xyz = 2(1/x + 1/y + 1/x)
@shinoda said:IF V be the volume of a cuboid of dimension x,y,z and A is its surface area then A/V will be equal to ?a) (xyz)^2b) 1/2 (1/xy + 1/xz + 1/yz )c) 1/2 (1/x + 1/y + 1/z)d)none
c) 1/2 (1/x + 1/y + 1/z)
@sbharadwaj said:OA is given as 1..! I guess OA must be wrong..! Can you explain.?
The last line says :
The no of players playing (both is missing here) golf and volleyball is same as the no of players playing all the three
If we consider this and take c=1 then no of players playing all the three will come out as 0
which is not possible
Where am I going wrong ?
The no of players playing (both is missing here) golf and volleyball is same as the no of players playing all the three
If we consider this and take c=1 then no of players playing all the three will come out as 0
which is not possible
Where am I going wrong ?
@sbharadwaj said:Plz explain this Q..! Q attached.!
1 ?
let all three = x = both golf and volleyball but not cricket
both golf and cricket but not volleyball = 15 - x
both cricket and volleyball but not golf = 14 - x
only golf = x + x + 15 - x + a = 40----> a = 25 - x
only cricket = 15 - x + x + 14 - x + b = 30-----> b = x + 1
only volley ball = x + x + 14 - x + c = 30----> c = 16 - x
min value of only cricket can be 1 at x = 0 ??
@shinoda said:Two persons start walking on road that diverge at an angle 120. if they walk at the rate of 3km/h and 2km/h respectivly. find the distance between them after 4 hours.?
root 304
@mailtoankit said:1 ?let all three = x = both golf and volleyball but not cricketboth golf and cricket but not volleyball = 15 - xboth cricket and volleyball but not golf = 14 - xonly golf = x + x + 15 - x + a = 40----> a = 25 - xonly cricket = 15 - x + x + 14 - x + b = 30-----> b = x + 1only volley ball = x + x + 14 - x + c = 30----> c = 16 - xmin value of only cricket can be 1 at x = 0 ??
Yes..OA is 1.
But then, will the total sum up to 80.? (Total no. of students)
@Exodia said:Find the 28383rd term of the series: 12345678910111213........1) 32) 43) 9d) 7Plz give answer alongwith explanation.
3?
see, single digits ... 9
double digits.. 90*2=180
similarly three digit number.. 900*3=2700
total of 2889 digits.
left 28383-2889= 25494.
now find what will be the 25492th number. it will be.. 7372
how to find this.. divide 25492 by 4 and u'll get 6372nd number from 1000 which is 7372.
now we have got 28381 digits.. (2889+25492)
next no. willbe 7373.. which mean 4 more digits but we are intersted in 28383rd digit only..
or..... some digits here..737273(73) .. hence 3. :)
@shinoda said:the section of a solid right circular cone by a plane containing vertex and perpndiculr to base is an equilateral triangle of side 12cm.find volume of cone ?
is it 36pi*root12
@sbharadwaj said:Yes..OA is 1. But then, will the total sum up to 80.? (Total no. of students)
nopes it is not happening
then total becomes 71
isnt it?
then total becomes 71
isnt it?
@shinoda said:Two persons start walking on road that diverge at an angle 120. if they walk at the rate of 3km/h and 2km/h respectivly. find the distance between them after 4 hours.?
Using cosine : third side =_/304
@sbharadwaj said:Yes..OA is 1. But then, will the total sum up to 80.? (Total no. of students)
71 aa raha hai...
@mailtoankit said:1 ?let all three = x = both golf and volleyball but not cricketboth golf and cricket but not volleyball = 15 - xboth cricket and volleyball but not golf = 14 - xonly golf = x + x + 15 - x + a = 40----> a = 25 - xonly cricket = 15 - x + x + 14 - x + b = 30-----> b = x + 1only volley ball = x + x + 14 - x + c = 30----> c = 16 - xmin value of only cricket can be 1 at x = 0 ??
then total becomes 71
but not possible
but not possible
@joyjitpal said:i am getting 28but there arent any options@Estallar12 approach?
@hedonistajay said:approach ...
@Estallar12 said:108 values.
Bhai, we need to find how many combinations will give 7000.
Like 777*8 + 77*3 + 7*79 = 7000.
Taking 3P as Number of 7 used as 777.
Taking 2Q as Number of 7 used as 77.
Taking R as Number of 7 used as 7.
So, we have to find 3P + 2Q + R = ??
@shinoda said:Two persons start walking on road that diverge at an angle 120. if they walk at the rate of 3km/h and 2km/h respectivly. find the distance between them after 4 hours.?
Apply Cosine Rule.
Base = 4 root (19).
@Estallar12 said:Bhai, we need to find how many combinations will give 7000.Like 777*8 + 77*3 + 7*79 = 7000.Taking 3P as Number of 7 used as 777.Taking 2Q as Number of 7 used as 77.Taking R as Number of 7 used as 7.So, we have to find 3P + 2Q + R = ??
we can also take 777*9 plus 7 equal to 7000
in that case what will be our ans?
in that case what will be our ans?
@sbharadwaj said:Yes..OA is 1. But then, will the total sum up to 80.? (Total no. of students)
@Estallar12 bhai ye sum thora dekhna