Advertisements
Advertisements
प्रश्न
Solve: x – 30% of x = 35
उत्तर
x – 30% of x = 35
⇒ x - `30/100 xx "x" = 35`
⇒ `(100"x" - 30"x")/100 = 35`
⇒ 100x - 30y = 35 × 100
⇒ 100x - 30x = 3500
⇒ 70x = 3500
⇒ x = `3500/70 = 50`
∴ x = 50
APPEARS IN
संबंधित प्रश्न
Solve the following equation:
5(8x + 3) = 9(4x + 7)
Solve the following equation:
`("a" + 5)/6 - ("a" + 1)/9 = ("a" + 3)/4`
Solve the following equation:
2 + y = 7
Solve the following equation:
3p = 12
Solve the following equation:
2x + 5 = 5
Solve: `"x"/2 + "x"/5 = 14`
Solve: `("y" + 2)/3 + ("y" + 5)/4 = 6`
The length of a rectangular plot exceeds its breadth by 5 m. If the perimeter of the plot is 142 m, find the length and the breadth of the plot.
A man is thrice as old as his son. After 12 years, he will be twice as old as his son at that time. Find their present ages.
Solve the following equation for the unknown: `(1.5y)/(3) = (7)/(2)`
Solve the following equation for the unknown: `("a" - 1)/(2) - ("a" + 1)/(3)` = 5 - a
The ages of P and Q are in the ratio 7 : 5. Ten years hence, the ratio of their ages will be 9 : 7. Find their ages.
The sum of two numbers is 99. If one number is 20% more than the others, find the two numbers.
A's age is six times that of B's age. 15 years hence A will be three times as old as B; find their ages.
A man is double his son's age. Twenty years ago, he was six times his son's age. Find the present age of the father and the son.
What number increased by 8% of itself gives 1620?
What number decreased by 12% of itself gives 1584?
What number decreased by 18% of itself gives 1599?
A boy played 100 games, gaining Rs 50 on each game that he won, and losing Rs 20 for each game that he lost. If on the whole he gained Rs 800, find the number of games that he won.
A man leaves half his property to his wife, one-third to his son and the remaining to his daughter. If the daughter's share is Rs 15000, how much money did the man leave? How much money did his wife get?
