Advertisements
Advertisements
प्रश्न
Two-third of a number is greater than one-third of the number by 3. Find the number.
उत्तर
Let the number x.
Then, two-third of this number = `2/3x` and one-third of this number = `1/3x`.
According to the question,
`2/3 x = 1/3 x + 3`
⇒ `2/3x - 1/3 x` = 3
⇒ `(2x - x)/3` = 3 ......[Taking LCM on LHS]
⇒ `x/3` = 3
⇒ `x/3 xx 3` = 3 × 3 ......[Multiplying both sides by 3]
⇒ x = 9
Hence, the required number is 9.
APPEARS IN
संबंधित प्रश्न
If x = 1, y = 2 and z = 5, find the value of x3 − y3− z3
Write the constant term of 3x2 + 5x + 8
Identify the monomials, binomials, and trinomials in the following:
a + b − 2c
Add
2 + x − x2 + 6x3, −6 −2x + 4x2 −3x3, 2 + x2, 3 − x3 + 4x − 2x2
How much less than x − 2y + 3z is 2x − 4y − z?
If the present age of Ramandeep is n years, then her age after 7 years will be ______.
The maximum temperature on a day in Delhi was p°C. The minimum temperature was (p – 10)°C.
Give expression for the following case.
p divided by 7
Form expressions using y, 2 and 7. Every expression must have y in it. Use only two number operations. These should be different.
In a Mathematics quiz, 30 prizes consisting of 1st and 2nd prizes only are to be given. 1st and 2nd prizes are worth ₹ 2000 and ₹ 1000, respectively. If the total prize money is ₹ 52,000 then show that:
- If 1st prizes are x in number the number of 2nd prizes are ______.
- The total value of prizes in terms of x are ______.
- The equation formed is ______.
- The solution of the equation is ______.
- The number of 1st prizes are ______ and the number of 2nd prizes are ______.
