Question

. 1:2:3:4 के अनुपात में चार संख्याएं हैं। उन
• संख्याओं का योग 16 है। पहली व चौथी संख्या
का योग बराबर है-​

Answer 1

Solution :-

Let the number be x, 2x, 3x and 4x respectively.

Case : Sum of all the number = 16

According to the question,

=> x + 2x + 3x + 4x = 16

=> 10x = 16

=> x = 8/5

Now, Sum of first and fourth number :

= x + 4x

= 8/5 + (8 × 4)/5

= 8/5 + 32/5

= 40/5 = 8

Hence,

The sum of first and fourth number = 8

Answer 2

Question:

There are four numbers in the ratio of 1: 2: 3: 4. The sum of those numbers is 16. The sum of the first and fourth numbers is equal to

Solution:

» There are four numbers in the ratio of 1: 2: 3: 4. The sum of these numbers is 16.

• Let the number be M.

=> M + 2M + 3M + 4M = 16

=> 10M = 16

=> M = 16/10

=> M = 8/5

» We have to find the sum of the first and fourth number.

=> M + 4M = ?

=> 8/5 + 4(8/5)

=> 8/5 + 32/5

=> (8 + 32)/5

=> 40/5

=> 8

_____________________________

The sum of the first and fourth numbers is 8.

____________ [ANSWER]

_____________________________