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Question : Two pipes, X and Y, can fill a cistern in 24 minutes and 32 minutes, respectively. If both the pipes are opened together, then after how much time (in minutes) should Y be closed so that the tank is full in 18 minutes?
Option 1: 10
Option 2: 8
Option 3: 6
Option 4: 5
Correct Answer: 8
Solution : Time taken by X alone to fill the tank = 24 minutes Part of work done by X alone in a minute = $\frac{1}{24}$ Time taken by Y alone to fill the tank = 32 minutes Part of work done by Y alone in a
Question : ABCD is a cyclic quadrilateral such that AB is the diameter of the circle circumscribing it and $\angle A D C=148^{\circ}$. What is the measure of the $\angle BAC$?
Option 1: $32^{\circ}$
Option 2: $45^{\circ}$
Option 3: $58^{\circ}$
Option 4: $60^{\circ}$
Correct Answer: $58^{\circ}$
Solution : ABCD is a cyclic quadrilateral. $\angle ADC = 148^\circ$ The angle formed by drawing lines from the ends of the diameter of a circle to its circumference forms a right angle. The sum of opposite angles of the cyclic quadrilateral is 180$^\circ$ In quadrilateral ABCD,
Question : 'The Godfather of Soul' is an autobiography of ___________, who was one of the greatest singers.
Option 1: Tina Turner
Option 2: Kurt Cobain
Option 3: Johnny Cash
Option 4: James Brown
Correct Answer: James Brown
Solution : The correct option is James Brown.
"The Godfather of Soul" is an autobiography of James Brown, a legendary American singer, songwriter, and dancer. Renowned for his electrifying performances and influential contributions to funk music, Brown's autobiography offers insights into his life, career, and
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. 1029 : 7 :: 2187 : 9 :: 24 : ?
Option 1: 3
Option 2: 2
Option 4: 4
Correct Answer: 2
Solution : Given: 1029 : 7 :: 2187 : 9 :: 24 : ?
Like, (7)3 × 3 = 343 × 3 = 1029 (9)3 × 3 = 729 × 3 = 2187 Similarly, (?)3 × 3 = 24 ⇒ (?)3 = 24
Question : The following sentence has been split into four segments. Identify the segment that contains a grammatical error, and select the option which rectifies that error.
A lot of adulterants / are chemicals that can lead / to an range of health problems / in both children and adults.
Option 1: A lot of adulterants
Option 2: are chemicals that can lead
Option 3: in both children and adults.
Option 4: to a range of health problems
Correct Answer: to a range of health problems
Solution : The correct choice is the fourth option.
The error lies in the use of the article "an" before the word "range". In this case, "range" begins with a consonant sound. So, it requires the article "a" instead of "an"
Question : Which chemical element of Group 18 of the periodic table is produced by the natural radioactive decay of Uranium in soils and rocks?
Option 1: Oganesson
Option 2: Krypton
Option 3: Radon
Option 4: Neon
Correct Answer: Radon
Solution : The correct answer is Radon.
The chemical element produced by the natural radioactive decay of uranium in soils and rocks within Group 18 of the periodic table is Radon (Rn). Radon is a colourless, odourless and tasteless noble gas. It is a radioactive
Question : The mean height of 30 students was given as 140 cm. It was later observed that one of the observations was incorrectly copied as 121 cm while it was 134 cm. What was the correct mean height? [Give your answer correct to one place of decimal.]
Option 1: 150.4 cm
Option 2: 140.4 cm
Option 3: 160.4 cm
Option 4: 130.4 cm
Correct Answer: 140.4 cm
Solution : The mean height of 30 students = 140 cm Sum of heights = 140 × 30 = 4200 Actual sum of heights = 4200 – 121 + 134 = 4213 Actual mean height = $\frac{4213}{30}$ = 140.43 Hence, the correct answer is 140.4 cm.
Question : ' Darwin finches' refer to a group of :
Option 1: Fishes
Option 2: Lizards
Option 3: Birds
Option 4: Amphibians
Correct Answer: Birds
Solution : The correct option is Birds.
Darwin's finches refers to a group of birds that Charles Darwin observed during his voyage on the HMS Beagle in the early 1830s. There are about 14 species of these finches, and they are known for their remarkable diversity in
Question : In what ratio should tea at Rs. 240 per kg be mixed with tea at Rs. 280 per kg so that, on selling the mixture at Rs. 324 per kg, there is a profit of 20%?
Option 1: 1 : 1
Option 2: 1 : 2
Option 3: 1 : 3
Option 4: 1 : 4
Correct Answer: 1 : 3
Solution : Let the cost price (CP) of Tea A = Rs. 240 and CP of Tea B = Rs. 280 Let the CP of the mixture be Rs. $x$. The mixture is sold at Rs. 324 with a gain of 20%. So, $\frac{120x}{100}$ =
Question : Which of the following Article/Articles cannot be suspended even during an emergency?
Option 1: Article 19
Option 2: Articles 20 and 21
Option 3: Articles 22 and 23
Option 4: Articles 24 and 25
Correct Answer: Articles 20 and 21
Solution : The correct option is Articles 20 and 21.
Articles 20 and 21 of the Constitution of India pertain to fundamental rights and provide protections to individuals. Article 20 ensures that no person can be convicted of any offence except for violation
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