Question

Distance covered by the 2nd
The distance between the two trains after 2 hours = (300 - 162
the second condition of the question.
EXERCISE 2.2
1. Find three consecutive even numbers whose sum is 66.
2. Find three consecutive odd numbers whose sum is 69.
2
2
3. of a number is 8 less than of the number. Find the number.
5
3
4. If 15 is added to four times a certain number, then the result obtained is
Find the number.
5. The sum of the digits of a two-digit number is 9. The new number o
exceeds the given number by 27. Find the given number.
1
6 If
of a number is 16 less than the original number than find +1​

Answer 1

Answer:

Solution :

Let the first odd number = x

Second odd number = x+2

And the third odd number = x+4

According to the condition,

x+x+2+x+4=63x+x+2+x+4=63

\Rightarrow3x+6=63⇒3x+6=63

⇒3x=63-6⇒3x=63−6

⇒3x=57⇒3x=57

⇒x=\frac{57}{3}⇒x=

3

57

⇒x=19⇒x=19

∴ First odd number = x = 19

Second odd number = x + 2 = 19 + 2 = 21

third odd number = x + 4 = 19 + 4 = 23

Hence, the three consecutive odd numbers are 19, 21 and 23.