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प्रश्न
When two consecutive natural numbers are added, the sum is 31; find the numbers.
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उत्तर
Let first natural number = x
Then second natural number = x + 1
According to the sum,
x + x + 1 = 31
⇒ 2x + 1 = 31
⇒ 2x = 31 − 1 = 30
⇒ x = `30/2 = 15`
∴ First natural number = 15
and second number = 15 + 1 = 16
संबंधित प्रश्न
The sum of three consecutive numbers is 54. Taking the middle number as x, find:
(i) expression for the smallest number and the largest number.
(ii) the three numbers.
Solve the following equation: 3y ÷ 8 = 13
Solve the following equation: 5 = x - 3
Solve the following equation: 3z + 2 = -4
Solve the following equation: 3y - (y + 2) = 4
Solve the following equation: 5x – 2x +15 = 27
Solve the following equation: 7z + 15 = 3z – 13
Solve the following equation: 2 (x - 3) – 3 (x - 4) =12
A number is divided equally among 5 children, and each gets 6. The equation is:
If 6 is added to twice a number to get 22, the correct equation is:
