Aptitude - Problems on Numbers - Discussion
Discussion Forum : Problems on Numbers - General Questions (Q.No. 2)
2.
Three times the first of three consecutive odd integers is 3 more than twice the third. The third integer is:
Answer: Option
Explanation:
Let the three integers be x, x + 2 and x + 4.
Then, 3x = 2(x + 4) + 3 
x = 11.
Third integer = x + 4 = 15.
Video Explanation: https://youtu.be/_77C9YE321Y
Discussion:
75 comments Page 4 of 8.
Abinash said:
8 years ago
I could not get how 3X came in the question it is given that 3 times the first three consecutive number what my point is that it should be 3{X (X+2) (X+4) } but why is it 3X?
Kelhen said:
7 years ago
Three consecutive odd integers that's;
X+1, x+3, x+5,
From the question.
3(x+1) = 2(x+5)+3,
3x+3 = 2x+10+3,
X = 10.
Therefore the third integer is;
X+5;
10+5 = 15.
X+1, x+3, x+5,
From the question.
3(x+1) = 2(x+5)+3,
3x+3 = 2x+10+3,
X = 10.
Therefore the third integer is;
X+5;
10+5 = 15.
Tashi Tshering said:
4 years ago
Here,
1,3,5 three odd consecutive no;
Three times the first of three consecutive odd integers is 3 more than twice the third,
3x when the third inter is x=5.
3*5=15.
1,3,5 three odd consecutive no;
Three times the first of three consecutive odd integers is 3 more than twice the third,
3x when the third inter is x=5.
3*5=15.
(11)
Saji said:
1 decade ago
Hai can any one clear my doubt. They have mentioned it as three consecutive odd integers. If 0 is substituted in the place of x it becomes three even integers.
Santhosh said:
1 decade ago
Three consecutive odd integers are x+1, x+3, x+5
So,
3(x+1) = 3+2(x+5).
3x+3 = 3 + 2x + 10.
x = 10. So the third number is x+5.
10+5 = 15.
Answer 15.
So,
3(x+1) = 3+2(x+5).
3x+3 = 3 + 2x + 10.
x = 10. So the third number is x+5.
10+5 = 15.
Answer 15.
Sandeep pote said:
1 decade ago
Third integer would be 9.
Explanation:
Suppose 3 numbers are . . x, x+2, x+4.
3x = 2(x + 4) - 3
3x = 2x + 8 -3
x = 5
Then third number is 5 + 4 = 9.
Explanation:
Suppose 3 numbers are . . x, x+2, x+4.
3x = 2(x + 4) - 3
3x = 2x + 8 -3
x = 5
Then third number is 5 + 4 = 9.
RKO said:
9 years ago
0 is an even number, about what basis the given question doesn't take o is let me assume if we take consecutive no i.e. X+0=0, so we took directly "X".
Bharghavi said:
1 decade ago
The answer would be 9.
Explanation:
Suppose 3 nos. are x,x+2,x+4
The equations would be
3x+3=2(x+4),therefore x=5
So, the third no. is x+4=5+4=9.
Explanation:
Suppose 3 nos. are x,x+2,x+4
The equations would be
3x+3=2(x+4),therefore x=5
So, the third no. is x+4=5+4=9.
Sukanya said:
8 years ago
But 2x+1,2x+3,2x+5. are better examples to understand this problem because if we substitute even numbers in x, x+2,x+3 we didn't get odd numbers.
FRANCO said:
1 decade ago
The first part is 3 more than the second part.
So to equate it we have to add 3 to the second part
I part = II part + 3
The ans 15 is correct
So to equate it we have to add 3 to the second part
I part = II part + 3
The ans 15 is correct
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