Advertisements
Advertisements
Question
Five times the price of a pen is Rs 17 more than three times its price. Find the price of the pen.
Solution
Let the price of one pen be Rs x.
According to the question:
5x = 3x + 17
or, 5x − 3x = 17 [Transposing 3x to the L.H.S.]
or, 2x = 17
or, `(2x)/2=17/2` [Dividing both the sides by 2]
or, x = 8.50
∴ Price of one pen = Rs 8.50
APPEARS IN
RELATED QUESTIONS
Complete the last column of the table.
| Equation | Value | Say, whether the Equation is Satisfied. (Yes/No) |
| 5x = 25 | x = -5 |
Solve the following equation by trial and error method:
3m - 14 = 4
By how much does 1 exceed 2x − 3y − 4?
Simplify:
xy − [yz − zx − {yx − (3y − xz) − (xy − zy)}]
Solve the following equation by the trial-and-error method: 4x = 28
Solve the following equation by the trial-and-error method: 2x − 3 = 9
If x = 1, y = 2 and z = 3, find the value of x2 + y2 + 2xyz.
In triangle ABC, the measure of ∠B is two-third of the measure of ∠A. The measure of ∠C is 20° more than the measure of ∠A. Find the measures of the three angles.
When a number is divided by 8, the result is –3. The number is ______.
Two consecutive odd integers.
