the principal constituent of Pyrex glass is​

Answer:

First Case (Room),

Length (L) of a floor = 6.5m

Breadth (B) of a floor = 5m

Therefore,

Area of a floor = L × B

= 6.5 × 5 sq. m

= 32.5 sq. m

= 32.5 × 100 × 100 sq. cm

= 325000 sq. cm

Second case (tiles),

Side of a square tile = 25 cm

Therefore,

Area of a square tile = (side)^2

= (25)^2 sq. cm

= 625 sq. cm

Therefore,

No. of tiles required = 325000/625

= 520

Cost of 1 tile = ₹ 9.40 (given)

Therefore,

Cost of 520 tiles = ₹ (520×9.40)

= ₹ 4888 (ans.)

Answer :- The cost of flooring a room 6.5m by 5m with square tiles of side 25 cm at the rate of ₹ 9.40 per tile is ₹ 4888.

Step-by-step explanation:

Rs. 4888

hope it helps you

Given: 560g of iron.

To find: We have to find the number of moles.

Solution:

To determine the number of moles of 560 grams of iron we have to follow the below steps as follows-

We know that the atomic weight of iron or Fe is 56 grams.

56 grams of iron has 1 mole.

Thus 560 grams if the iron has 560/56=10 moles.

560 grams of iron has 10 moles.

Hence the correct option is b.

Answer:

option b is correct

Explanation:

hope it helps

Answer:

Consumer Awareness is an act of making sure the buyer or consumer is aware of the information about products, goods, services, and consumers rights. Consumer awareness is important so that buyer can take the right decision and make the right choice.

It is the method of making customers aware of the commodities they purchase.

• The analysis of customers and the successful methods they use to select and dispose of commodities is consumer behaviour. Customers' emotional, mental, and behavioural responses are all included.
• Awareness represents that consumers are given proper information. It is needed as -

1. So that the consumer can make the correct choice
2. To avoid consumer exploitation due to limited product information, such as warranties and the buying conditions.
3. It is required by companies for brand building. If the company ensures their products are genuine the customers will prefer them.
4. It increases economic stability as well.

Answer:

no

Step-by-step explanation:

this is not exactly divisible by 11