Class 7 Exam  >  Class 7 Questions  >  Parvinder sold a watch at a loss of 5 percent... Start Learning for Free
Parvinder sold a watch at a loss of 5 percent .if he had sold that watch for ₹27 more ,he would have gained 7%.find the cost price of the watch?
Verified Answer
Parvinder sold a watch at a loss of 5 percent .if he had sold that wat...
Let the cost price= Rs x
1)
loss = l = 5%
selling price(s1) = x(100-l%)/100
= x(100-5)/100
= 95x/100-----(1)
2)
gain (g)=7%
selling price(s2) = x(100+g)/100
= x(100+7)/100
=107x/100-----(2)
but
(2) - (1)=27
107x/100 - 95x/100 = 27
12x/100 = 27
x = 27*100/12
after cancellation
x = 225
therefore
cost price = Rs225
This question is part of UPSC exam. View all Class 7 courses
Most Upvoted Answer
Parvinder sold a watch at a loss of 5 percent .if he had sold that wat...
Given:

  • Parvinder sold a watch at a loss of 5%

  • If he had sold that watch for ₹27 more, he would have gained 7%



To find: The cost price of the watch

Solution:

Let the cost price of the watch be x.

When Parvinder sold the watch at a loss of 5%, the selling price of the watch was:

SP1 = x - 0.05x = 0.95x

When he sold the watch at a gain of 7%, the selling price of the watch was:

SP2 = x + 0.07x = 1.07x

It is given that if he had sold the watch for ₹27 more, he would have gained 7%. Therefore,

SP1 + ₹27 = SP2
0.95x + ₹27 = 1.07x
0.12x = ₹27
x = ₹225

Therefore, the cost price of the watch is ₹225.

Answer: The cost price of the watch is ₹225.
Attention Class 7 Students!
To make sure you are not studying endlessly, EduRev has designed Class 7 study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Class 7.
Explore Courses for Class 7 exam

Top Courses for Class 7

Parvinder sold a watch at a loss of 5 percent .if he had sold that watch for ₹27 more ,he would have gained 7%.find the cost price of the watch?
Question Description
Parvinder sold a watch at a loss of 5 percent .if he had sold that watch for ₹27 more ,he would have gained 7%.find the cost price of the watch? for Class 7 2024 is part of Class 7 preparation. The Question and answers have been prepared according to the Class 7 exam syllabus. Information about Parvinder sold a watch at a loss of 5 percent .if he had sold that watch for ₹27 more ,he would have gained 7%.find the cost price of the watch? covers all topics & solutions for Class 7 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Parvinder sold a watch at a loss of 5 percent .if he had sold that watch for ₹27 more ,he would have gained 7%.find the cost price of the watch?.
Solutions for Parvinder sold a watch at a loss of 5 percent .if he had sold that watch for ₹27 more ,he would have gained 7%.find the cost price of the watch? in English & in Hindi are available as part of our courses for Class 7. Download more important topics, notes, lectures and mock test series for Class 7 Exam by signing up for free.
Here you can find the meaning of Parvinder sold a watch at a loss of 5 percent .if he had sold that watch for ₹27 more ,he would have gained 7%.find the cost price of the watch? defined & explained in the simplest way possible. Besides giving the explanation of Parvinder sold a watch at a loss of 5 percent .if he had sold that watch for ₹27 more ,he would have gained 7%.find the cost price of the watch?, a detailed solution for Parvinder sold a watch at a loss of 5 percent .if he had sold that watch for ₹27 more ,he would have gained 7%.find the cost price of the watch? has been provided alongside types of Parvinder sold a watch at a loss of 5 percent .if he had sold that watch for ₹27 more ,he would have gained 7%.find the cost price of the watch? theory, EduRev gives you an ample number of questions to practice Parvinder sold a watch at a loss of 5 percent .if he had sold that watch for ₹27 more ,he would have gained 7%.find the cost price of the watch? tests, examples and also practice Class 7 tests.
Explore Courses for Class 7 exam

Top Courses for Class 7

Explore Courses
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev