Advertisements
Advertisements
प्रश्न
Six more than one-fourth of a number is two-fifth of the number. Find the number.
Advertisements
उत्तर
Let the required number = x
∴ One-fourth of the number = `"x"/4`
Two-fifth of the number = `"2x"/5`
According to the statement:
`"2x"/5 = 6 + "x"/4`
`=> "2x"/5 - "x"/ = 6/1`
`=> "2x"/5 xx 20 - "x"/4 xx 20 = 6 xx 20`
....[Multiplying each term by 20 because L.C.M. of 5,4 and 1 = 20]
⇒ 8x- 5x = 120
⇒ 3x = 120
⇒ x = `120/3`
x = 40
Required number = 40
APPEARS IN
संबंधित प्रश्न
Solve the following equation:
`("x" - 1)/("7x" - 14) = ("x" - 3)/("7x" - 26)`
Solve: `"2x"/3 - ("x" - 1)/6 + ("7x" - 1)/4 = 2 1/6` Hence, find the value of 'a', if `1/"a" + 5"x" = 8`
Five less than 3 times a number is -20. Find the number.
Fifteen more than 3 times Neetu’s age is the same as 4 times her age. How old is she ?
The present age of a man is twice that of his son. Eight years hence, their ages will be in the ratio 7 : 4. Find their present ages
After 12 years, I shall be 3 times as old as 1 was 4 years ago. Find my present age.
The sum of two numbers is 405 and their ratio is 8 : 7. Find the numbers.
Given that x ≥ y. Fill in the blank with suitable inequality sign
x + 6 `square` y + 6
Given that x ≥ y. Fill in the blank with suitable inequality sign
x – y `square` 0
Solve the following inequation
2a + 3 ≤ 13, where a is a whole number
