Latest L&T Aptitude Question SOLUTION: ‘a’ is greater than ‘b’ by 2 and ‘b’ is greater than ‘c’ by 10. If a + b + c = 130, then (b +c) – a = ? 1) 38 2) 42 3) 44 4) 34 5) None of these

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(#M40007763) L&T Numerical Ability question Keep an EYE

‘a’ is greater than ‘b’ by 2 and ‘b’ is greater than ‘c’ by 10.
If a + b + c = 130, then (b +c) – a = ?
1) 38
2) 42
3) 44
4) 34
5) None of these

Asked In L&T anvity (12 years ago)

Unsolved Read Solution (7)

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Read Solution (7) :

mary  (10 years ago)

ans: 34
a=b+2 ; b=c+10 hence a=c+12; a+b+c=130
solving this a=48 , b=46 , c=36
(b+c)=46+36=82-a=82-48=34

Is this solution Helpfull? Yes (23) | No   

Shravan Kumar  (12 years ago)

The question is not clear. wat do you mean by ‘a’,‘b’,‘c’ and –? we can see only greek and latin here

Is this solution Helpfull? Yes (4) | No (12)  

Aamir Beriwala  (8 years ago)

Here,
a=b+2
b=c+10
now put the above value in a+b+c=130 so,
a+b+c=130
b+2+b+b-10=130
3b-8=130
3b=138
so, b=46
a=48
c=36
now, (b+c)-a=(46+36)-48=34
so, Ans.:34

Is this solution Helpfull? Yes (3) | No   

sakshi goyal  (9 years ago)

ans-44
a=b+2
c=c+10
a+b+c=130
2+b+b+c=130
2b+c=128
2(c+10)+c=128
c=36
b=c+10
b=46
similarly,a=38
putting values,
b+c-a=44

Is this solution Helpfull? Yes | No (5)  

shailesh upadhyay  (8 years ago)

a+b+c=130
since, a>b by 2......then equation is : a-b=2......therefore,a=b+2
since, b>c by 10.........then equation is : b-c=10..........therefore, c=b-10
substitute the value of a and c in a+b+c=130
you will get b=46,then
substitute b in a=b+2,c=b-10
you will get values of: a=48,b=46,36
substitute them in (b+c)-a=you will get 34

Is this solution Helpfull? Yes | No   

RANGASWAMY  (4 years ago)

a+b+c=130
a=b+2
b=c+10
c=b-10
b+2+b+b-10=130
b=46
a=48
c=36
therefore (b+c)-1=34

Is this solution Helpfull? Yes | No   

RANGASWAMY  (4 years ago)

the answer is 34.

Is this solution Helpfull? Yes | No   

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