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Q:

abcdefghijklmnopqrstuvwxyz Riddle

What sentence contains all abcdefghijklmnopqrstuvwxyz?

Answer

The Quick Brown Fox Jumped Over The Lazy Dog is the sentence which contains all 26 alphabets i.e, from a to z.

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Q:

A bag contains 3 red balls, 5 yellow balls and 7 pink balls. If one ball is drawn at random from the bag, what is the probability that it is either pink or red?

A) 2/3	B) 1/8
C) 3/8	D) 3/4

Answer & Explanation Answer: A) 2/3

Explanation:

Given number of balls = 3 + 5 + 7 = 15

One ball is drawn randomly = 15C1

probability that it is either pink or red = $\frac{7 C_{1} + 3 C_{1}}{15 C_{1}} = \frac{7 + 3}{15} = \frac{10}{15} = \frac{2}{3}$

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Filed Under: Probability
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Q:

Which of these does not contain a structural protein?

A) Tendons	B) Ovalbumin
C) Muscles	D) Ligaments

Answer & Explanation Answer: B) Ovalbumin

Explanation:

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Filed Under: Biology
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Q:

Which layer of the atmosphere contains the ozone layer?

A) Troposphere	B) Stratosphere
C) Thermosphere	D) Mesosphere

Answer & Explanation Answer: B) Stratosphere

Explanation:

The ozone layer is a region of Earth's Stratosphere that absorbs most of the Sun's ultraviolet (UV) radiation. It contains high concentrations of ozone (O3) in relation to other parts of the atmosphere, although still small in relation to other gases in the stratosphere.

The Atmosphere is divided into 4 layers according to major changes in temperature. They are :

1. Troposphere,

2. Stratosphere,

3. Mesosphere and

4. Thermosphere.

The farther away from earth, the thinner the atmosphere gets.

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Filed Under: General Science
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Q:

An alloy of copper and bronze weight 50g. It contains 80% Copper. How much copper should be added to the alloy so that percentage of copper is increased to 90%?

A) 45 gm	B) 50 gm
C) 55 gm	D) 60 gm

Answer & Explanation Answer: B) 50 gm

Explanation:

Initial quantity of copper = $\frac{80}{100} x 50$ = 40 g

And that of Bronze = 50 - 40 = 10 g

Let 'p' gm of copper is added to the mixture

=> $(50 + p) x \frac{90}{100}$ = 40 + p

=> 45 + 0.9p = 40 + p

=> p = 50 g

Hence, 50 gms of copper is added to the mixture, so that the copper is increased to 90%.

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Filed Under: Alligation or Mixture
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Q:

Fresh grapes contain 60% water, while dry grapes contain 40% water. How many kgs of dry grapes can be obtained by 60 kg of fresh grapes?

A) 25 kgs	B) 30 kgs
C) 35 kgs	D) 40 kgs

Answer & Explanation Answer: D) 40 kgs

Explanation:

The fruit content in both the fresh fruit and dry fruit is the same.

Let 'p' kgs of dry grapes are obtained from the 60 kgs of fresh grapes

=> $60 x \frac{40}{100} = p x \frac{60}{100} = > p = 40 kgs .$

Therefore, 40 kgs of Dry grapes are obtained from 60 kgs of Fresh grapes.

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Filed Under: Percentage
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Q:

A mixture contains 25% milk and rest water. What percent of this mixture must taken out and replaced with milk so that in mixture milk and water may become equal.

A) 31.8%	B) 31%
C) 33.33%	D) 29.85%

Answer & Explanation Answer: C) 33.33%

Explanation:

Now, take percentage of milk and applying mixture rule

25 100

50

50 25 = 2 : 1

Hence required answer = 1/3 or 33.33%

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Filed Under: Alligation or Mixture
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Q:

Saliva contains an Enzyme called

Answer

Amylase, also called Ptyalin, which is capable of breaking down starch into simpler sugars such as maltose and dextrin that can be further broken down in the small intestine is the Enzyme present in Saliva.

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