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Question : Directions: Which of the following terms will replace the question mark (?) in the given series? LDEA, NGIF, ?, RMQP, TPUU
Option 1: PMJK
Option 2: PIMK
Option 3: PMIK
Option 4: PJMK
Correct Answer: PJMK
Solution : Given: LDEA, NGIF, ?, RMQP, TPUU
Add 2, 3, 4, and 5 to the first, second, third, and fourth letters of the previous term to obtain the next term in the series –
LDEA→L + 2 = N; D + 3 = G; E +
Question : What happens to the decomposition rate when detritus is rich in lignin and chitin?
Option 1: It is negligible.
Option 2: It is faster.
Option 3: There is no movement.
Option 4: It is slower.
Correct Answer: It is slower.
Solution : The correct answer is it is slower.
When detritus is rich in lignin and chitin, the decomposition rate typically slows down. The presence of lignin and chitin in detritus acts as a barrier to decomposition. It slows down the breakdown of organic
Question : Simplify: ${\frac{x^4-2 x^2+1}{x^2-2 x+1}}$
Option 1: $x^2-2 x+1$
Option 2: $x^2+2 x+2$
Option 3: $x^2+2 x+1$
Option 4: $x^2+x+1$
Correct Answer: $x^2+2 x+1$
Solution : ${\frac{x^4-2 x^2+1}{x^2-2 x+1}}$ . $= \frac{(x^2-1)^2}{(x-1)^2}$ $=\frac{(x+1)^2(x-1)^2}{(x-1)^2}$ $= (x+1)^2$ $= x^2+2x + 1$ Hence, the correct answer is $ x^2+2x +1$.
Question : Directions: In a code language, we are going is coded as ca da ga, you are happy is coded as sa ga ta, she is going is coded as ma ra ca, and you were is coded as ta ka. What is the code for the word we were happy in that language?
Option 1: sa da ca
Option 2: ka da sa
Option 3: ta da sa
Option 4: ka da ga
Correct Answer: ka da sa
Solution : Given: 1. we are going⇒ca da ga 2. you are happy⇒sa ga ta 3. she is going⇒ma ra ca 4. you were⇒ta ka
On, comparing all the coded sentences, we find that – In sentences
Question : Pipe A can fill a tank of capacity 350 litres in $3 \frac{1}{2}$ minutes. Pipe B can fill a tank of capacity 780 litres in $8 \frac{2}{3}$ minutes. How long (in min) will it take to fill a tank of capacity 1615 litres, if both pipes are opened together?
Option 1: $9$
Option 2: $7 \frac{1}{2}$
Option 3: $8 \frac{1}{2}$
Option 4: $8$
Correct Answer: $8 \frac{1}{2}$
Solution : Use: Time taken by a pipe = $\frac{\text{Capacity of tank}}{\text{Efficiency of a pipe}}$ Given: Pipe A can fill a tank of capacity 350 litres in $3\tfrac{1}{2}$ minutes Pipe B can fill a tank of capacity 780 litres in $8\tfrac{2}{3}$ minutes Now, Pipe A can
Question : Which one of the following is not a photosynthetic pigment?
Option 1: Chlorophyll
Option 2: Phycobilin
Option 3: Carotenoid
Option 4: Anthocyanin
Correct Answer: Anthocyanin
Solution : The correct answer is Anthocyanin.
Anthocyanins are a group of pigments that give many plants their red, purple, and blue colours, including certain flowers and fruits. While they are not the principal photosynthetic pigments, they are prevalent in plant tissues and serve functions such as
Question : Identify the segment in the sentence which contains a grammatical error. Zoya won the first prize in the race unless she stumbled and fell.
Option 1: unless she
Option 2: prize in the race
Option 3: Zoya won the first
Option 4: stumbled and fell
Correct Answer: unless she
Solution : The first option is correct.
Question : The ratio of the sum of the salaries of A and B to the difference between their salaries is 11 : 1, and the ratio of the sum of the salaries of B and C to the difference between their salaries is also 11 : 1. If A's salary is the highest and C's is the lowest, then what is B's salary (in Rs.) given that the total of all their salaries is Rs. 1,82,000?
Option 1: Rs. 72,000
Option 2: Rs. 60,000
Option 3: Rs. 50,000
Option 4: Rs. 86,400
Correct Answer: Rs. 60,000
Solution : Given: The salaries of A, B, and C are: $\frac{\text{A+B}}{\text{A–B}}=\frac{11}{1}$ And, $\frac{\text{B+C}}{\text{B–C}}=\frac{11}{1}$ Applying componendo and dividendo, we get: $\frac{\text{A}}{\text{B}}=\frac{12}{10}=\frac{6}{5}$ And, $\frac{\text{B}}{\text{C}}=\frac{12}{10}=\frac{6}{5}$ $\therefore$ A : B : C = 36 : 30 : 25 Let $\text{A = 36x; B = 30x; C = 25x}$. Given:
Question : ___ is a legal declaration of a person who is unable to pay off debts.
Option 1: Bankruptcy
Option 2: Credit crunch
Option 3: Amortisation
Option 4: Bancassurance
Correct Answer: Bankruptcy
Solution : The answer is Bankruptcy.
Bankruptcy is a legal declaration of a person who is unable to pay off debts. When someone files for bankruptcy, an automatic stay goes into effect. This legal order prohibits creditors from taking further action to collect debts.
Question : In how many years will Rs. 2,000 yield Rs. 662 as a compound interest at 10% per annum compounded annually?
Option 1: 3
Option 2: 2
Option 3: 4
Option 4: 5
Correct Answer: 3
Solution : Rate, R = 10% Principal amount, P = Rs. 2,000 Compound interest, CI = Rs. 662 When compounded annually, Compound interest after n years = $P[(1+\frac{R}{100})^{n} –1)]$ ⇒ $662 = 2000[(1+\frac{10}{100})^{n} –1)]$ ⇒ $2662 = 2000(1+\frac{10}{100})^{n})$ ⇒ $1.331= (1.1)^{n}$ ⇒ $n = 3$ years Hence,
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