Question

തുടർച്ചയായ 8 എണ്ണൽ സംഖ്യകളുടെ തുക 140 ആണ്. എങ്കിൽ ആദ്യത്തെ സംഖ്യ ഏത് ?

• A. 15
• B. 17
• C. 14
• D. 18

Answer 1

Answer:

C. 14

Let's denote the first number as 'x'. Since we are dealing with 8 consecutive natural numbers, the numbers can be represented as:

x, x+1, x+2, x+3, x+4, x+5, x+6, x+7

The sum of these numbers is given as 140:

x + (x+1) + (x+2) + (x+3) + (x+4) + (x+5) + (x+6) + (x+7) = 140

Combine like terms:

8x + 28 = 140

Subtract 28 from both sides:

8x = 112

Divide by 8:

x = 14

So, the first number is:

14