Latest TCS Aptitude Question SOLUTION: M+D+I=74.D+I is 46 greater than M.I is 60% less than D.what is the weight of D?

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M+D+I=74.D+I is 46 greater than M.I is 60% less than D.what is the weight of D?

Asked In TCS manaswini devabhakthuni (9 years ago)

Unsolved Read Solution (14)

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Read Solution (14) :

shahnawaz  (9 years ago)

M+D+I=74 EQUESTION1
D+I=M+46 EQUESTION 2
I=D-D*60/100=.4D
PUT THE D I VALUE IN EUESTION2
1.4-46=M
PUT THE M VALUE IN EQUESTION 1
1.4D-46+.4D+D=74
D=300/7

Is this solution Helpfull? Yes (30) | No (4)  

Aksshara  (9 years ago)

M+d+I=74
D+I=M+46=>2(D+I)=28
D+I=14=>D+0.4D=14
1.4D=14=> D=10

Is this solution Helpfull? Yes (14) | No (12)  

mounika  (9 years ago)

given M+D+I=74 and D+I=46+M
so substitute D+I in first we get M=14,D+I=60
given I is 60% lessthan D.
60% in D is60/100D=3/5D
60% less than D is=D-3/5D=2/5D
therefore I=2/5D
subsitute I value in D+I=60
we get D=42.85=43
so I=25.8

Is this solution Helpfull? Yes (4) | No (3)  

Narasapu Hari prasad  (9 years ago)

D=42.85
m=14.01
I=17.14

Is this solution Helpfull? Yes (2) | No (2)  

mahesh  (9 years ago)

M+D+I=74 --1
D+I=M+46 --2

M+M+46=74 BCOZ FORM 2
2M=28
M=14

FROM 1

D+I=60

D+(4/10)D=60 BCOZ I=40% OF D

D=300/7

Is this solution Helpfull? Yes (2) | No (1)  

rahul gera  (9 years ago)

300/7
M=14

Is this solution Helpfull? Yes (1) | No   

LIRA RAKSHIT  (9 years ago)

D=50 (let)
Hence, I=60% less Dan D; i.e. 20
50+20=70; i.e.>M (whr M=4)
Thus, D=50

Is this solution Helpfull? Yes (1) | No (1)  

Abhishek nkumar  (9 years ago)

Ans: 10
M + D + I = 74 ⇒ M = 74 -D - I
M = D + I + 46
I = 4D/10
74-D-I=D+I+46
74-D-4D/10=D=4D/10+46
D=10Ans.
74 - D - I = D + I + 46
74 - D - 410 D = D + 410 D + 46
⇒ D = 10

Is this solution Helpfull? Yes (1) | No (4)  

sayan ghosh  (9 years ago)

M+D+I=74 --(1)
D+I=M+46 --(2)

M+M+46=74 FORM 2
2M=28
M=14

FROM 1

D+I=60

D+(4/10)D=60 as here it is given that I is 60 % less than D I=40% OF D

so
10 D + 4 D / 10 = 60
14D=600
D= 600/14
SO, D=300/7
HENCE
D=42.8

Is this solution Helpfull? Yes (1) | No   

vivek kumar  (9 years ago)

M+D+I=74
D+I=M+46
SO M+M+46=74
OR, M=14
I=D(1-0.6)=0.4D
D+I=46+M=46+14=60
OR,I=60-D
SINCE, I=0.4D
OR, 60-D=0.4D
1.4D=60
S0,D=300/7
OR,D+I=

Is this solution Helpfull? Yes | No (1)  

gautam  (9 years ago)

M=1.57
D=45.26
I=27.17

Is this solution Helpfull? Yes | No (3)  

venkata ramana  (9 years ago)

D value is 37

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VISHAL SHARMA  (8 years ago)

M=74-46=28
IF D=x , THEN I=0.4x
THEREFORE 1.4x=46.
x=D=46/1.4=32.85

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SAJAL SARIN  (8 years ago)

From the very first statement we can see the value of D+I=46 as D+I is greater than M by 46.That means if we keep 46 in first equation M is obtained 28.Uptill now every condition is followed.Now calculating I:-
I=D-60*D/100=40*D/100
Now D+I=46
So, D+40*D/100=46
Thus,D=46*100/140=32.85
Therefore value of D=32.85 or 230/7

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