Question

Sond condition is also Venu.
EXERCISE 8B
numbers are in the ratio 8: 3. If the sum of the numbers is 143, find the numbers.
of a number is 20 less than the original number. Find the number.
ourths of a number is 10 more than two-thirds of the number. Find the number.
Twenty-four is divided into two parts such that 7 times the first part added to 5 times the
second part makes 146. Find each part.
a nd the number whose fifth part increased by 5 is equal to its fourth part diminished by 5.
Three numbers are in the ratio of 4 : 5: 6. If the sum of the largest and the smallest equal
the sum of the third and 55, find the numbers.
7. I 10 be added to four times a certain number, the result is 5 less than five times th
number. Find the number
& Two numbers are such that the ratio between them is 3:5. If each is increased by 10. t
ratio between the new numbers so formed is 5 : 7. Find the original numbers.
. Find three consecutive odd numbers whose sum is 147.
Mint. Let the required numbers be (2x+1), (2x+3) and (2x+5).
Find three consecutive even numbers whose sum is 234.
Hint. Let the required numbers be 2x, (2x+2) and (2x +4).
The sum of the digits of a two-digit number is 12. If the new number formed by reversin
digits is greater than the original number by 54, find the original number. Check
solution.​

Answer 1

Step-by-step explanation:

let the no.. be. x & y

x + y = 143 ...........1

&

x = 20 +y .............2

then,,.

20 + y + y = 143

2y = 123

y = 123/2

or

y = 6.15

put the value of y in eq... 2

x = 20 + 123/2

x = 163/2

or

x = 8.15

hope it's helpful