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Question : Directions: If a mirror is placed on the line AB, then out of the option figures which figure will be the right image of the question figure?
Option 1:
Option 2:
Option 3:
Option 4:
Correct Answer:
Solution : As per the mirror image properties, closer things appear closer to the mirror in the reflection. Here, according to the information provided, the mirror is placed on the right side of the figure (on line AB). So, the left side of the reflected image will appear
Question : Which of these straits separates Asia from Africa?
Option 1: Malacca
Option 2: Hormuz
Option 3: Bab el-Mandeb
Option 4: Bosphorus
Correct Answer: Bab el-Mandeb
Solution : The correct answer is Bab el-Mandeb.
Situated in the African continent between Yemen and Djibouti, the Bab el-Mandeb strait divides Asia from Africa. The majority of Asian trade with Western countries occurs over this strait. The Malacca Strait separates Malaysia from Indonesia, the Bosphorus
Question : A, B, and C are employed to do a piece of work for INR 5,290. A and B together are supposed to do $\frac{19}{23}$ of the work and B and C together $\frac{8}{23}$ of the work. Then A should be paid:
Option 1: INR 4,250
Option 2: INR 3,450
Option 3: INR 1,950
Option 4: INR 2,290
Correct Answer: INR 3,450
Solution : Part of work done by A and B together = $\frac{19}{23}$ of total work Part of work done by B and C together = $\frac{8}{23}$ of total work Part of the work done by A alone = Total work – Part of work done
Question : Directions: In the following question, some parts of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. If the sentence is free from error, select "No Error".
We know it is an extra early start to (1) / your day, but we are certain (2) / you too would like to contribute towards this. (3) / No Error (4)
Option 1: (1)
Option 2: (2)
Option 3: (3)
Option 4: (4)
Correct Answer: (1)
Solution : The error lies in the first part of the sentence.
In this case, the error lies in the use of the word "extra" before "early". The word "extra" is not necessary in this context. Instead, too is the appropriate adverb to convey that the start
Question : The given table shows the number of berths reserved in trains A, B, and C on a particular day under different classes. Study the given table and answer the question that follows. How many berths in all the classes together are vacant on trains B and C?
Option 1: 534
Option 2: 612
Option 3: 322
Option 4: 278
Correct Answer: 322
Solution : Vacant berth in train B = (200 – 190) + (200 – 183) + (400 – 348) + (300 – 215) + (500 – 414) = 10 + 17 + 52 + 85 + 86 = 250 Vacant berth in train C = (200 –
Question : Directions: Which of the following numbers will replace the question mark (?) in the given series? 4, 9, 20, 43, 90, ?
Option 1: 181
Option 2: 184
Option 3: 186
Option 4: 185
Correct Answer: 185
Solution : Given: 4, 9, 20, 43, 90, ?
Here, the pattern followed is as follows –
So, 185 is the missing term in the series. Hence, the fourth option is correct.
Question : If the number 55p1067q9 is exactly divisible by 99, then pq is equal to:
Option 1: 35
Option 2: 28
Option 3: 36
Option 4: 42
Correct Answer: 35
Solution : Given number = 55p1067q9 If a number is divisible by 99, it should also be divisible by 9 and 11. For the divisibility rule of 9, the sum of the digits of the number should be divisible by 9. ⇒ 5 + 5 + p
Question : The average of 8 numbers is 21. If each of the numbers is multiplied by 8, the average of the new set of numbers is:
Option 1: 21
Option 2: 29
Option 3: 8
Option 4: 168
Correct Answer: 168
Solution : Given: The average of 8 numbers = 21 Required new average = Old average × 8 $\therefore$ New average = 21× 8 = 168 Hence, the correct answer is 168.
Question : If $m-n=2$ and $mn=15,(m,n>0)$ , then the value of $(m^2-n^2)(m^3-n^3)$ is:
Option 1: 1856
Option 2: 1658
Option 3: 1586
Option 4: 1568
Correct Answer: 1568
Solution : Given: $m-n=2$ and $mn=15,(m,n>0)$ $(m-n)^2=2^2$ ⇒ $m^2+n^2-2mn=4$ ⇒ $m^2+n^2=4+(2×15)=34$ ⇒ $m^2+n^2+30=34+30$ [adding 30 to both sides] ⇒ $m^2+n^2+2mn=64$ [as, $mn=15$] ⇒ $(m+n)^2=8^2$ ⇒ $m+n=8$ Now, $(m^2-n^2)(m^3-n^3)$ = $(m+n)(m-n) (m-n)(m^2+mn+n^2)$ = $8×2×2×(34+15)$ = $1568$ Hence, the correct answer is 1568.
Question : Directions: In the following question, some parts of the sentence may have some errors. Find out which part of the sentence has an error and select the appropriate option. If the sentence is free from error, select "No error".
He studied (1) / so hardly (2) / he was sure of passing. (3) / No error (4)
Correct Answer: (2)
Solution : The error lies in the second part of the sentence.
Hardly is an adverb that means only just, which is not the correct choice, and it should be replaced with the adjective hard to convey that he studied so rigorously that he was sure that
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