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Question : Directions: In the following question, some parts of the sentence have errors, and some are correct. Find out which part of the sentence has an error. The number of that part is the answer. If a sentence is error-free, your answer is "No Error".
Scientist now hope that cloning can successfully be conducted in human beings in the near future.
(1) Scientist now hope that cloning
(2) can successfully be conducted in
(3) human beings in the near future
(4) No Error
Option 1: 1
Option 2: 2
Option 3: 3
Option 4: 4
Correct Answer: 1
Solution : The correct choice is the first option.
Here, we are not talking about a particular scientist, so we should use the plural form, "scientists".
Therefore, the correct answer is: Scientists now hope that cloning can successfully be conducted in human beings in the near
Question : Which of the following is not a noble gas?
Option 1: Hydrogen
Option 2: Helium
Option 3: Neon
Option 4: Argon
Correct Answer: Hydrogen
Solution : The correct answer is Hydrogen.
Hydrogen is not a noble gas. Nobel gases are chemically inert gases which are placed in Group 18 in the periodic table. There are 6 noble gases which are found in nature- helium (He), neon (Ne), argon (Ar), krypton (Kr),
Question : Directions: Select the option that represents the letters which, when sequentially placed from left to right in the blanks below, will complete the letter series. F _ _ Y _ _ K B _ O F _ B Y _
Option 1: O F K B O Y K
Option 2: B Y O K F O K
Option 3: K B O F Y K O
Option 4: Y O K B F O K
Correct Answer: K B O F Y K O
Solution : Given: F _ _ Y _ _ K B _ O F _ B Y _
To fill the series we have to divide the series – F _ _ Y _ / _ K B _ O /
Question : The following table represents the population of four different areas and the percentage of males, females, and children among them.
What is the total number of children in areas P and Q together?
Option 1: 7000
Option 2: 9000
Option 3: 6000
Option 4: 8000
Correct Answer: 8000
Solution : The total number of children in areas P and Q together = Number of children in area P + number of children in area Q = 20% of 10,000 + 30% of 20,000 = $\frac{20}{100}\times10000+\frac{30}{100}\times 20000$ = $2000+6000$ = $8000$ Hence, the correct answer is
Question : Direction: In the following question, from the given alternative words, select the word which cannot be formed using the letters of the given word.
DEPARTMENT
Option 1: ENTER
Option 2: PARENT
Option 3: TEMPER
Option 4: PARADE
Correct Answer: PARADE
Solution : Given:
First option: ENTER; All the letters of ENTER are present in the word DEPARTMENT.
Second option: PARENT; All the letters of PARENT are present in the word DEPARTMENT.
Third option: TEMPER; All the letters of TEMPER are present in the word
Question : Directions: Select the option that is related to the fifth number in the same way as the second number is related to the first number and the fourth number is related to the third number. 19 : 34 :: 5 : 6 :: 27 : ?
Option 1: 50
Option 2: 67
Option 3: 52
Option 4: 63
Correct Answer: 50
Solution : Given: 19 : 34 :: 5 : 6 :: 27 : ?
Like, 19 : 34→19 × 2 = 38; 38 – 4 = 34 5 : 6→5 × 2 = 10; 10 – 4 = 6 Similarly, follow the same pattern for 27 :
Question : If x + y + z = 8, and x2 + y2 + z2 = 20, then the value of x3 + y3 + z3 – 3xyz is _______.
Option 1: 16
Option 2: 10
Option 3: 15
Option 4: –16
Correct Answer: –16
Solution : (x + y + z)2 = x2 + y2 + z2 + 2xy + 2yz + 2xz ⇒ 2(xy + yz + zx) = (x + y + z)2 – (x2 + y2 + z2) ⇒
Question : Public goods possess which of the following features in the economy? I. They are non-rivalrous. II. They are non-excludable.
Option 1: Only II
Option 2: Only I
Option 3: Neither I nor II
Option 4: Both I and II
Correct Answer: Both I and II
Solution : The correct option is Both I and II.
Public goods exhibit two essential characteristics in the economy. Firstly, they are non-rivalrous, meaning that consumption or use of the good by an individual does not diminish its availability to others.
Secondly, public
Question : Profit after selling a commodity for Rs. 400 is the same as loss after selling it for Rs. 300. The cost of the commodity is:
Option 1: Rs. 450
Option 2: Rs. 400
Option 3: Rs. 350
Option 4: Rs. 250
Correct Answer: Rs. 350
Solution : Let's denote the cost price of the commodity as C. The profit after selling it for Rs. 400 is given by the formula: Profit = Selling price − Cost price ⇒ Profit = 400 − C The loss after selling it for Rs. 300
Question : A toffee company prepares toffee of two different flavours X and Y. The bar graph below expresses the production of two flavours over 4 years. What is the difference between the average production of flavour X in 2017 and 2018 and the average production of flavour Y in 2019 and 2020?
Option 1: 6000 packs
Option 2: 6400 packs
Option 3: 7500 packs
Option 4: 7000 packs
Correct Answer: 6000 packs
Solution : Production of flavour X in 2017 = 20000 Production of flavour X in 2018 = 20000 So, average production of flavour X in 2017 and 2018 = $\frac{20000+20000}{2}$ = 20000 Production of flavour Y in 2019 = 32000 Production of flavour Y in 2020
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