7. A man earns 15000. He saves 25% of his salary and spends 55% of it on expenses. Find the
amount he saves and the amount he spends.
8. A jacket which has a list price of 800 is available at a discount of 20%. Find the price of the jacket
after the discount.
9. If 23% of x is 46, find x.
10. An alloy contains 36% zinc, 40% copper and remaining is nickel. Find the amount of each metal
in a sample of alloy of mass 1 kg.
11. A company has 70 employees who are engineers. If the engineers comprise of 35% of all employees,
find the total number of employees in the company.
Answers
7.
Man earns ₹15000
Saves 25% of his earnings
Savings = 25% of ₹15000
= 25/100 × ₹15000
= 1/4 × ₹15000
= 3750
Spends 55% of earnings
Expenditure = 55% of ₹15000
= 55/100 × ₹15000
= ₹8250
__________
8.
Price = ₹800 - (20% of ₹800)
= ₹800 - (20/100 × ₹800)
= ₹640
__________
9.
23% of x = 46
23/100 × x = 46
x = 46 × 100/23
x = 200
__________
10.
1 kg = 1000 g
Zinc = 36% of 1000 g
= 36/100 × 1000 g
= 360 g
Copper = 40% of 1000 g
= 40/100 × 1000 g
= 400 g
Nickel = [100% - (36% + 40%)] of 1000 g
= 24% of 1000 g
= 24/100 × 1000 g
= 240 g
__________
11.
35% of total employees = 70
35/100 of total employees = 70
Total employees = 70 × 100/35
Total employees = 200
Step-by-step explanation:
A jacket which has a list price of rs 800 is available at a discount of 20%. find the price of the jacket after the discount