English

Solve: "X"/5 + "2x" = 33 - Mathematics

Advertisements
Advertisements

Question

Solve: `"x"/5 + "2x" = 33`

Sum

Solution

`"x"/5 + "2x" = 33`

`("x" + 10"x")/5 = 33`

⇒ `"11x"/5 = 33` 

⇒ 11x = 33 × 5 = 165

⇒  x = `165/11 = 15`

∴ x = 15

shaalaa.com
Simple Linear Equations in One Variable
  Is there an error in this question or solution?
Chapter 12: Simple Linear Equations (Including Word Problems) - Exercise 12 (C)

APPEARS IN

Selina Concise Mathematics [English] Class 7 ICSE
Chapter 12 Simple Linear Equations (Including Word Problems)
Exercise 12 (C) | Q 2

RELATED QUESTIONS

Solve the following equation:

2 + y = 7


Solve the following equation:

`"x" + 1/4 = - 3/8`


Solve the following equation:

`"p" - 12 = 2 2/3`


Solve the following equation:

1.3b = 39


Solve: `1/2"m" + 3/4"m" - "m" = 2.5`


Solve: `(3"x" - 2)/7 - ("x" - 2)/4 = 2`


Solve: `("x" - 4)/7 = "x + 3"/7 + "x + 4"/5`


The sum of twice a number and 4 is 80, find the number.


The difference between a number and one- fourth of itself is 24, find the number.


Find three consecutive natural numbers such that the sum of the first and the second is 15 more than the third.


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


Two complementary angles differ by 14°. Find the angles.


The difference of the squares of two consecutive even natural numbers is 68. Find the two numbers.


A takes 4hours more than B in walking 30 km. If A doubles his speed, he will take 1hr less than B. Find the speeds of A and B.


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


There are certain benches in a classroom. If 4 students sit on each bench, 3 benches are left vacant; and if 3 students sit on each bench, 3 students are left standing. What is the total number of students in the class?


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


The age of a man is three times the age of his son. After 10 years, the age of the man will be double that of his son. Find their present ages.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×