Topic - Quant Mixed Bag

Solved ? - Yes

Source - Elite's Grid Prep Forum ]]>

Topic - Quant Mixed Bag

Solved ? - Yes

Source - Elite's Grid Prep Forum ]]>

So x/1+1/7 = (1-x)/1,

x = 3/7. ]]>

m.p.125

sp..125 * 7/8==109.375

so profit==9.37%

Method2- let CP=1

MP=1+1/4=5/4

and 12.5%=1/8 discount

so 5/4 * 7/8=35/32

so profit=35/32-1=3/32 * 100=9.37%

D1 = distance of car

D2 = distance bus

D1=2s

D2=(2-3/4)(3s)

D2=15/4s

D1:D2

2s:15/4s

Ratio is 8:15 ]]>

let x be the distance between X and Y. Note that speed is proportional to distance.

We have

a/b = (x+11)/(x-11) and b/c = (x+9)/(x-9) and a/c = 3/2,

(x+11)/(x-11) * (x+9)/(x-9) = (a/b)(b/c) = a/c = 3/2,

2(x^2+20x+99) = 3(x^2-20x+99),

x^2-100x+99 = 0,

(x-1)(x-99) = 0.

bcz x > 11, so x = 99 km. ]]>

a) 80

b) 96

c) 120

d) 192 ]]>

and water=2v/5 +(v * 60/100)=2v/5+3v/5=v

now 38.4 liter removed

so MF=(8v/5 -38.4)/(8v/5)

so milk=3v/5 * (8v/5 -38.4)/(8v/5)'

now equate to ratio and answer = 192 x 5/8 = 120 ]]>

a) 324

b) 240

c) 60

d) 48 ]]>

then last four places a b c d

when d=6 then out of 3 places one place will be filled by 6 so 3c1 and rest two have 9 choices so

3c1 * 9 * 9 = 243

now when d=0/2/4/8 so 4 choices so out of 3 places 2 places will be filled by 6 and one place have 9 choices so 3c2 * 9 * 4 = 108

now when 2,6 at first two places then d=6 then other 3 places have 9 * 9 * 9 = 729 choices

and when d=0/2/4/8 then one place should have 6 and rest 2 places have 9 choices so 4 * 3c1 * 9 * 9 = 972

so sum=2052 ]]>

10(a1+a2+a3+...a20)+(b1+b2+...b20)=360

now

10*(b1+b2+b3+...b20)+(a1+a2+a3...a20)= 436.0

so 9(b1+b2+...b20)-9(a1+a2+....a20)=76

so this is factor of 9 so not possible case ]]>

(10-r)/r * (3x/2) >= 1

(10-r)/r * (9/4)>= 1

90-9r > = 4r

so 13r < = 90

r < = 6.9

so r = 6

so 7th term ]]>

find area of Quadrilateral ]]>