हिंदी
सी.आई.एस.सी.ई.आईसीएसई ICSE Class 7

Solve: "X"/3 - "X"/4 = 2 - Mathematics

Advertisements
Advertisements

प्रश्न

Solve: `"x"/3 - "x"/4 = 2`

योग

उत्तर

`"x"/3 - "x"/4 = 2`

⇒ `("4x - 3x")/12 = 2`

⇒  4x - 3x = 2 × 12

⇒ x = 24

shaalaa.com
Simple Linear Equations in One Variable
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 12: Simple Linear Equations (Including Word Problems) - Exercise 12 (C)

APPEARS IN

सेलिना Concise Mathematics [English] Class 7 ICSE
अध्याय 12 Simple Linear Equations (Including Word Problems)
Exercise 12 (C) | Q 5

संबंधित प्रश्न

Solve the following equation:

`"x"/3 - 2 1/2 = "4x"/9 - "2x"/3`


Solve the following equation:

3p = 12


Solve the following equation:

12 = c – 2


6b + 40 = – 100 – b


6 – 5m – 1 + 3m = 0


Solve: `"2p"/3 - "p"/5 = 35`


The numerator of a fraction is four less than its denominator. If 1 is added to both, is numerator and denominator, the fraction becomes `1/2` Find the fraction.


Solve the following equation for the unknown: `(4)/(5) x - 21 = (3)/(4)x - 20`


Solve the following equations for the unknown: `(6x + 7)/(3x + 2) = (4x + 5)/(2x + 3)`


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.


A man covers a distance of 95 km in 5 hours; partly on foot at the rate of 5 km/h and partly on a motorcycle at 40km/h. Find the distance travelled by him on the motorcycle.


What number decreased by 12% of itself gives 1584?


In a factory a worker is paid Rs. 20 per hour for normal work and double the rate for overtime work. If he worked for 56 hours in a week, find the number of hours of his normal work if he receives Rs. 1440 in all.


The perimeter of a rectangular field is 140 m. If the length of the field is increased by 2 m and the breadth decreased by 3m, the area is decreased by 66 m2. Find the length and breadth of the field.


The breadth of a rectangular room is 2 m less than its length. If the perimeter of the room is 14m, find it's dimensions.


The perimeter of a rectangular field is 100m. If its length is decreased by 2m and breadth increased by 3 m, the area of the field is increased by 44m2. Find the dimensions of the field.


What number decreased by 12% of itself gives 1584?


In a shooting competition a marks man receives 50 paise if he hits the mark and pays 20 paise if he misses it. He tried 100 shots and was paid Rs 29. How many times did he hit the mark?


A man invested Rs 35000, a part of it at 12% and the rest at 14%. If he received a total annual interest of Rs 4460, how much did he invest at each rate?


A 700g dry fruit pack costs Rs 72. It contains some cashew kernels and the rest as dry grapes. If cashew kernels cost Rs 96 per kg and dry grapes costs Rs 112 per kg, what were the quantities of the two dry fruits separately.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×