Question

Solution:
Cost of 6 bottles of juice = 210
Cost of I bottle of juice = 210 + 6 = 35
Cost of I bottle of juice is 35
To find the cost of 4 bottles of juice, multiply the cost of 1 bottle of juice by 4
Cost of l bottle of juice = 35
Cost of 4 bottles of juice = 4 * 35 = 140
Cost of 4 bottles of juice is 140.
EXERCISE - 11.4
1.
2.
3.
If three apples cost 45, how much would five apples cost?
Laxmi bought 7 books for a total of 56. How much would she pay for just 3 books?
Reena wants to prepare vegetable pulao, she needs 300 grams of rice. If she has to feed 4
people. How much of rice is needed if the same pulao is prepared for 7 people?
The cost of 16 chairs is * 3600. Find the number of chairs that can be purchased
for 4500
4.​

Answer 1

Answer:

1. 75

2. 24

3. 525

4. 20

Step-by-step explanation:

cost of 3 apple = 45

cost of 1apple=45/3=15

so cost of 5 apples= 5*15=75

2. cost of 7 books=56

cost of 1book =56/7=8

so cost of 3books=8*3=24

3. rice required for 4people =300gm

rice required for 1person =300/4=75gm

so rice required for 7person = 75*7=525gm

4. cost of 16 chairs = 3600

cost of 1chair =3600/16= 225

so chairs can be purchased in rs 4500= 4500/225=20