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The service is name as Speed Posts.

Every envelope to be dispatched is Weighed, to calculate the correct amount of postage/stamp to be affixed on it.

(a) Card Index: It consists of a number of cards of a standard size, each concerned with one item of index. The heading is written on the top edge of the card and the remaining space is used to indicating the place where the corresponding record is kept. This lower portion of the card also carries certain essential information.

(b) Loose Leaf Index: In this type of index, the pages on which the index is prepared are not bound. Here the pages are fitted on to a metal hinges and screwed. Thus, wherever required some pages can be taken out and/or additional pages can be inserted.

(c) Bound Book Index: In this form of index, a bound book or a register is divided into various sections. Each section is allotted an alphabet. Names of the parties and the persons starting from a particular alphabet are written in the concerned section. At the outer margin of the page letter groups are shown by cut outs so that the initial letters of all the sections are visible at a glance. All entries relating to a particular letter of the alphabet are arranged in the same section or pages reserved for the same letter of the alphabet in a strict alphabetical order.

• Speedy delivery 
• Economy 
• Security 
• Feasibility of sending bulk mail 
• Possibility of use of pictures, demonstrations etc. 
• Automated records

(a) Increase in the speed of operations: Hand Operated Sealing Machines can seal about 100 envelopes a minute while electrically operated ones can operate at a speed of 15000 envelopes in an hour.

(b) Simplification of fixing of postage and avoidance of misuse of postage stamps: With Postal Franking Machine, there is less risk of misappropriation of postal stamps, avoidance of errors in stamping and simplification in keeping the account of stamps used. 

(c) Improvement in efficiency and accuracy:  A Letter Opening Machine operates manually or electrically at a great speed and can open 100 to 500 letters per minute and work of opening of mail can be efficiently managed. 

(d) Saving of time: An Automatic Numbering & Dating Machine is used for stamping on the incoming mail. In this machine, the next serial numbers and date automatically changes after every use with the help of self-inking stamp pad thus saving a lot of time.

Many plants store waste materials in the vacuoles of mesophyll cells and epidermal cells. When old leaves fall, the waste materials are excreted along with the leaves.

Correct option is D) talk

Correct option is B) talking

Correct option is A) leaning / talking

Correct option is A) to have been given

Correct option is C) to be invited

Given:

After giving 12% discount on the marked price, the selling price of the article is 369.60

Concept Used:

Marked Price (MP) / Cost Price (CP) = (100 + profit %) / (100 - discount %)

Calculation:

Let, the marked price of the article is 100%

He gave a discount of 12%

⇒ After discount selling price of the article (100 - 12) = 88%

Accordingly,

88% → 369.60

⇒ 1% → 369.60/88

⇒ 100% → (369.6/88) × 100 = 420

Marked price of the article = Rs. 420

If he had not given any discount he would have gained 20% that means then discount % should be 0%

MP / CP = (100 + 20) / (100 - 0)

⇒ MP / CP = 120 / 100

⇒ 420 / CP = 6 / 5

⇒ CP = 350

∴ The cost price of the item is Rs. 350.

Given:

Initial profit % = 12%

Original CP - New CP = Rs. 800

Original SP - New SP = Rs. 600

New Profit % = 12% + 8% = 20%

Formula used:

Profit % = [(SP - CP)/CP] × 100

Calculation:

The initial profit % = 12%

= 12/100

= 3/25

Here, 3 is the profit and 20 is CP.

Let, CP = 25x

Profit = 3x

∴ SP = 25x + 3x = 28x

New CP = 25x - 800      ------(1)

New SP = 28x - 600      ------(2)

∵ New Profit % = [(New SP - New CP)/New CP] × 100

⇒ 20 =[(28x - 600 - 25x + 800)/20x - 800] × 100

⇒ 20/100 = (3x + 200)/(25x - 800)

⇒ 1/5 = (3x + 200)/(25x - 800)

⇒ 25x - 800 = 15x + 1000

⇒ 10x = 1800

⇒ x = 180

∴ Original CP = 25x

= 25 × 180

= Rs. 4500

Given:

SP of the bike = Rs. 2500

Loss% = 20%

Formula:

Loss = CP – SP

Loss % = (Loss/CP) × 100 

Calculation:

CP of the bike = 2500 × (100/80) = Rs. 3125

∴ New SP of the bike = 3125 × (70/100) = Rs. 2187.5

The total amount of rice = 120 kg

He sells a part of it at a profit of 10 %, let this part is ‘x’ kg.

He sells the rest at a profit of 25%, i.e. he sells (120 – x) at 25%

He gains a profit of 15% on the whole.

Let the cost price is = y

⇒ 1.1 xy + 1.25 (120 – x)y = 1.15 × 120 y

⇒ 1.1 x + 1.25 (120 – x) = 1.15 × 120

⇒ 1.1x + 150 – 1.25 x = 138

⇒ 0.15 x = 12

⇒ x = 80 kg

The quantity of rice sold at a profit at 25% = 120 – x = 40 kg

Correct option is B) recommend

Given:

SP of sofa set for 1^st transaction = Rs. 25,800

SP of table for 1^st transaction = Rs. 5,000

Gain in 1^st transaction = 10%

SP of sofa set in 2^nd transaction = Rs. 22,500

SP of table for 2^nd transaction = CP

Loss in 2^nd transaction = 5%

Formula used: 

Profit = SP – CP

Loss = CP – SP

Profit % = (SP – CP)/CP × 100

Loss % = (CP – SP)/CP × 100

Calculation:

Total SP in 1^st transaction = SP of sofa set + SP of table

⇒ Total SP in 1^st transaction = 25800 + 5000

⇒ Total SP in 1^st transaction = 30800

Profit % = (SP – CP)/CP × 100

⇒ 10 = (30800 – CP)/CP × 100

⇒ CP = (30800 – CP)10

⇒ CP = 308000 – 10CP

⇒ 11CP = 308000

⇒ CP = 28000

Total CP = Rs. 28,000

Loss = 5% of 28000

⇒ Loss = 5/100 × 28000 = 1400

As, table is sold at cost price in 2^nd transaction

CP of sofa set = 22500 + 1400 = 23900

CP of table = Total CP – CP of sofa set

⇒ CP of table = 28000 – 23900

⇒ CP of table = 4100

∴ Cost price of table is Rs. 4100 

Correct option is C) tram

Cost is the financial value acquired by the resources which are used to prepare a product. Costing is the method of estimating and then evaluating the total cost of producing a product or garment, together with the cost of raw materials, the ornamentation or embroidery done on it, labour charges, marketing and transportation, as well as the general expenses of operating the business. Merchandisers should have a thorough knowledge of costing. 

Since embroidery is mostly done for garments, the cost of the garment must be kept in mind, which depends on 

(i) Fabric 

(ii) Trimmings 

(iii) Garment design 

(iv) Surface Embellishments: printing, embroidery, appliqué, etc. 

(v) Cost of Transportation 

(vi) Production time 

(vii) Labor 

(viii) Estimated profit of the manufacturing organization

All the costing depends upon parameters which are unique and fluctuate often. Finally, the finished products are labelled with its cost and are checked with buyer’s specifications.

Key factors that directly affect embroidery costing, are 

(a) Quantity of embroidery work 

It is a key point, which affects embroidery costing to a great extent. Every embroiderer should accurately know the quantity of work to be done in an article, otherwise embroidery takes more cost. Before fixing the cost of embroidery, the quantity of embroidery should be evaluated. This includes considering where would the embroidery be placed on the fabric, how many times it will be repeated, is it a big-sized embroidery or a smaller one, etc.

(b) Completion time 

Time plays an important role in fixing embroidery cost. Different types of embroidery take different time to complete, which directly affects embroidery costing.

(c) Quality of raw materials 

Embroidery is produced by using various types of thread and other raw material. The cost of raw materials may not always be the same at all places. Also, bulk purchase of raw material is likely to be cheaper. That affects the cost of embroidery too. If we use expensive raw materials, embroidery cost increases and vice versa. For example, metallic and silk embroidery threads are costlier than cotton thread work.

(d) Nature of embroidery 

It is another important point which should be kept in mind during the costing of embroidered fabric. Each embroidery type needs different amount of costing i.e. the cost of chain stitch embroidery is not the same as that of zardozi work. This is because the raw material used in zardozi includes the use of dabka, stones, thread as well as chain, compared to chain stitch.

(e) Nature of workmanship 

Costing is greatly dependent on the workmanship. Intricate work needs heavily skilled craftsmanship, more time, and more efforts of the worker whereas a regular article can be produced by using lesser efforts in less time.

(f) Customer’s specification 

Sometimes costing of any work depends on the customer’s requirements. Just as in the garment industry, the customer’s specifications are of importance, similarly in an embroidery unit too.

Correct answer is  in the living room

Correct answer is  in the garage

Correct answer is  in the closet

Correct option is A) enjoy taking

C. vertically

D. green light

D. gamma rays have higher frequency than infrared waves

 Correct answer is (b) river

Correct option is (4) An observer can see a rainbow when his front is towards the sun.

To see the rainbow the sun should be on his backside.

umbrella = mountain, paper, vegetables

(D) 23.1sin(49 πt + 60°)

V₀ = i₀ X_L

= i₀ (WL)

= (5) (49π) (30 x 10)

= 23.1

Voltage will lead current by 90°.

∴ V = 23.1 sin (49 πt + 60°)

Given: V = 220 V 

Power of each bulb, P = 10 W 

Current, I = 5 A 

Let the number of bulbs = n. 

We have, 

R = \(\frac{V^2}{P}\) = \(\frac{220 \times \ 220}{10}\) = 4840 Ω

∴  Resistance of 1 bulb = 4840Ω 

For a flow of 5A current, we need to find the equivalent resistance of the circuit. 

∴ R_eq =\(\frac{V}{l}\) = \(\frac{220}{5}\) = 44Ω 

In parallel combination,

  \(\frac{1}{R_{eq}}\) = \(\frac{1}{R}\) + \(\frac{1}{R}\) + \(\frac{1}{R}\) +............... (n times) 

Or, \(\frac{1}{R_{eq}}\) = n x \(\frac{1}{R}\)

∴  n = \(\frac{R}{R_{eq}}\) = \(\frac{4840}{44}\) = 110 

∴ 110 lamps have to be connected in parallel.

a. False. Following the collision of a positron with an electron, two gamma photons (511 keV) are produced, which travel in opposite directions. The simultaneous detection of these photons along the line of response will lead to the registration of the event. 

b. True. The tracer used most commonly is glucose labelled with Fl-18 (18-FDG), which has a very short half-life. Generators can also be used to produce radio cnuclides, for example the Ge-68/Ga-68 generator.

c. True. 

d. False. PET images provide functional and physiological information and are therefore often fused with computed tomography (CT) or magnetic resonance imaging (MRI) to provide anatomical information. 

e. False. Scintillation detectors are most commonly made up of bismuth germanate or lutetium yttrium ortho silicate (LYSO), which have a high detection efficiency and are able to absorb and convert photons with 511 keV into light.

a. True. 

b. True.

c. False. It is much greater (e.g. 2–4 line pairs mm^-1 for fluoros copy compared with more than 10 line pairs mm^-1 with X-ray films). 

d. True. 

e. True.

a. True. 

b. True. 

c. False. It is those structures closest to the focal plane that are most sharply imaged. 

d. True.

e. False. Contrast is reduced.

(B). 1.7 x 10^-6 ohm-cm 

(C)1.5 ohms and 3 ohms 

c. High performance fibres

High performance fibres have high strength, resistant to chemicals and can withstand high temperature without degradation. For example, they are used for bullet proof vests.

P₄O₆ reacts with cold water to give H₃PO₃

P₄O₆ reacts with cold water to give H₃PO₃.