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New question posted

4 months ago

0 Follower 5 Views

New answer posted

4 months ago

0 Follower 1 View

P
Payal Gupta

Contributor-Level 10

To make a new alloy with atleast 60% Cobalt we can use option (b) or (d) only but the lowest cost per unit can be achieved when A2, A3 and A5 are mixed in the ratio 4 : 1 : 1.

New answer posted

4 months ago

Directions for questions: Answer the following questions based on the information given below.

A manufacturing company's make various alloys, which is be used for certain specific purposes. It is considering a choice of 5 new alloys (A1, A2, A3, A4, and A5), which can be used in different proportions in the formulations. The table below gives the composition of these alloys. The cost per unit of each of these alloys is A1: 150, A2: 50, A3: 200, A4: 500, A5: 100

Composition

Alloys

Cobalt

Iron

Aluminum

Carbon

A1

50

30

10

10

A2

80

20

0

0

A3

10

30

50

10

A4

5

50

40

5

A5

45

50

0

5

For making engines, the alloy should containing 10% carbon and at least 30% iron. In how many different ways can we prepare this new alloy by mixing at least two of the given

...more
0 Follower 1 View

P
Payal Gupta

Contributor-Level 10

As the new alloy should contain 10% carbon and only two alloy contains 10% carbon i.e. A1 and A3. Hence, only by mixing A1 and A3 a new alloy with 10% carbon can be formed. Hence, there is only one way.

New answer posted

4 months ago

Directions for questions: Answer the following questions based on the information given below.

A manufacturing company's make various alloys, which is be used for certain specific purposes. It is considering a choice of 5 new alloys (A1, A2, A3, A4, and A5), which can be used in different proportions in the formulations. The table below gives the composition of these alloys. The cost per unit of each of these alloys is A1: 150, A2: 50, A3: 200, A4: 500, A5: 100

Composition

Alloys

Cobalt

Iron

Aluminum

Carbon

A1

50

30

10

10

A2

80

20

0

0

A3

10

30

50

10

A4

5

50

40

5

A5

45

50

0

5

The company is planning to make a new alloy required for making ships. This new alloy must contain at least 30% each of cobalt and iron, no more than 25% aluminum and at leas

...more
0 Follower 1 View

P
Payal Gupta

Contributor-Level 10

As the alloys are fixed in equal amounts, so we can take the average of the constituent percentage of the metal used. A1nly option A1 and A5 satisfies all the conditions.

New answer posted

4 months ago

0 Follower 3 Views

P
Payal Gupta

Contributor-Level 10

The number of females who eats Dainik Jagran, The telegram and Dainik Bhaskar:

= (38 + 11 + 21) * 150 = 10500

Required percent =1050035000*100=30%

New answer posted

4 months ago

0 Follower 2 Views

P
Payal Gupta

Contributor-Level 10

Required answer:

= (350*16)+15 (150*11)=5600+330=5930

New answer posted

4 months ago

0 Follower 2 Views

P
Payal Gupta

Contributor-Level 10

Required number of females:

=32100*15000=4800

New answer posted

4 months ago

0 Follower 3 Views

V
Vikram Hazarika

Beginner-Level 5

Passive sentences in the Simple Present Tense are the one which the subject is acted upon. In such sentences, the subject does not do the action but is being acted upon. The passive voice uses a conjugated form of the verb 'to be' along with past participle of the main verb. 

Examples:

  • Returned items are inspected by the shopkeeper. 
  • The stray dog is fed by everyone in the neighbourhood. 
  • The book is read. 
  • The meal is cooked by Rajni. 

New answer posted

4 months ago

0 Follower 3 Views

S
Shruti Tyagi

Beginner-Level 5

To form questions in the Present Indefinite Tense, one can add 'do' or 'does' before the subject and the infinitive form of the verb. When asking a question using the wh-word, place the pronoun or adverb before 'do' or 'does'. 

Examples:

  • Why does Mayank never answers his phone?
  • Where does Nisha work?
  • Do you want to go to the park?
  • Does Anjali work on Saturdays?

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