NCERT SOLUTIONS FOR CLASS 8 CH 8 EX. 8.2 Q1-5
NCERT Solutions for Class 8 Maths Chapter 8 Comparing Quantities Exercise 8.2 Ex 8.2 Class 8 Maths Question 1. A man got a 10% increase in his salary. If his new salary is ₹ 1,54,000, find his original salary. Solution: The increased salary = ₹ 1,54,000 Increase in salary = 10% Increase salary = Original salary × (1 + I n c r e a s e 100 ) Hence, the original salary = ₹ 1,40,000 Question 2 . On Sunday 845 people went to the Zoo. On Monday only 169 people went. What is the per cent decrease in the people visiting the Zoo on Monday? Solution: Number of people visiting the Zoo on Sunday = 845 Number of people visiting the Zoo on Monday = 169 Decrease in number of people visiting the Zoo = 845 – 169 = 676 Decrease per cent Hence, the decrease per cent = 80% Question 3. A shopkeeper buys 80 articles for ₹ 2,400 and sells them for a profit of 16%. Find the selling price of one article. Solution: Cost price of 80 articles = ₹ 2,400 Cost of 1 article = ₹ 2400 80 = ...