Latest Tech Mahindra Aptitude Question SOLUTION: If the product of 3 consecutive integers is 210 then the sum of the two smaller integers is: (a) 17 (b) 13 (c) 11 (d) 10

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If the product of 3 consecutive integers is 210 then the sum of the two smaller integers is:

(a) 17
(b) 13
(c) 11
(d) 10

Asked In Tech Mahindra Aashu (8 years ago)

Unsolved Read Solution (12)

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Read Solution (12) :

harika  (8 years ago)

let the numbers be x-1 , x , x+1
(x-1)(x)(x+1)=210
210=2*105
=2*3*35
=2*3*5*7
this can be written as 6*5*7
=>x-1=5
x=6
x+1=7
sum of two smallest numbers=6+5=11

Is this solution Helpfull? Yes (42) | No (3)  

sheelam pragnya  (8 years ago)

factors of 210 are 2,3,5,7 = 6,5,7 therefore sum of two smallest integers is 6+5=11

Is this solution Helpfull? Yes (19) | No (2)  

Joseph Madanu  (8 years ago)

Logically...
1's digit is "0" so the number is multiple of 5 or 10.
if we divide 210 by 10 then we get quotient as 21 so factors are 3 and 7 which are not consecutive
So 5 is one factor and we get 42 as quotient when we divide 210 by 5 so factors of 42 are 6 and 7.
so the factors are 5,6,7
and sum of two smaller integers is 11(5+6).

Is this solution Helpfull? Yes (7) | No   

veerakumar  (8 years ago)

the product is 210.then we have to take least numbers which can get the product of 210.if we go for 5,6,7 wee get the product 210.in these three numbers least numbers are 5,6 as compare to 7.so if we add 5,,6 then wee get as 11 as sum.
ans :C

Is this solution Helpfull? Yes (3) | No (1)  

LALITHA  (8 years ago)

5*6*7=210
so
5+6=11
option(c)

Is this solution Helpfull? Yes (1) | No   

sai kumar  (8 years ago)

10
the three consecutive integers be 3,7,10 then sum of two smaller integers is 10

Is this solution Helpfull? Yes | No (9)  

monica  (8 years ago)

11
From the factors we get no's as 5,6,7

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sushmitha  (7 years ago)

11 is the ans

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sushmitha  (7 years ago)

ans is 11
5*6*7=210

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pradeep kolasani  (7 years ago)

5*6*7=210 then 5+6=11

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Vikash kumar  (7 years ago)

5*6*7=21
sum of two smaller=11

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Kavya Shree. P. S  (7 years ago)

answer is option C.
the 3 consecutive integers are 5,6,7.
therefore the sum of 2 samller integers= 5+6= 11

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