Advertisements
Advertisements
प्रश्न
Two-third of a number is greater than one-third of the number by 3. Find the number.
Advertisements
उत्तर
Let the number be 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 xx 3` ...[Multiplying both sides by 3]
⇒ x = 9
Hence, the required number is 9.
APPEARS IN
संबंधित प्रश्न
If a = 2 and b = 3, find the value of ab − a2
If p = −2, q = −1 and r = 3, find the value of 2p2 − q2 + 3r2
Write the constant term of 3x2 + 5x + 8
Identify the like terms in the following:
3x, 4xy, −yz, `1/2`zy
Subtract:
3a from 5b
Subtract:
5a + 7b − 2c from 3a − 7b + 4c
How much less than x − 2y + 3z is 2x − 4y − z?
‘8 more than three times the number x’ can be written as ______.
Give expression for the following case.
p multiplied by 7
Give expression in the following case.
y is multiplied by − 8
