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Question : Parts of a sentence are given below in jumbled order. Arrange the parts in the correct order to form a meaningful sentence.
(A) that further treatment (B) useless (C) the doctor concluded (D) would be
Option 1: CADB
Option 2: BDCA
Option 3: CBAD
Option 4: BCAD
Correct Answer: CADB
Solution : The correct choice is the first option.
It constitutes the standard sentence structure, i.e., subject + verb + object.
Therefore, the sentence in the correct order is: The doctor concluded that further treatment would be useless.
Question : There are 3 taps, A, B, and C, in a tank. These can fill the tank in 10 h, 20 h, and 25 h, respectively. At first, all three taps are opened simultaneously. After 2 h, tap C is closed, and taps A and B keep running. After 4 h, tap B is also closed. The remaining tank is filled by tap A alone. Find the percentage of work done by tap A itself.
Option 1: 75%
Option 2: 52%
Option 3: 72%
Option 4: 32%
Correct Answer: 72%
Solution : LCM of 10, 20 and 25 is 100 Let the capacity of the tank be 100 units Efficiency of A = $\frac{100}{10}=10$ Efficiency of B = $\frac{100}{20}=5$ Efficiency of C = $\frac{100}{25}=4$ After 2 h, tap C is closed, and taps A and B keep
Question : Which of the following is not a dwarf planet in our solar system?
Option 1: Cupid
Option 2: Makemake
Option 3: Ceres
Option 4: Haumea
Correct Answer: Cupid
Solution : The correct answer is Cupid.
"Cupid" is not a dwarf planet in our solar system. Cupid is an asteroid and a member of the Amor group, which are near-Earth asteroids. The other options—Makemake, Ceres and Haumea—are classified as dwarf planets. Makemake and Haumea are
Question : Directions: Select the letter cluster that can replace the question mark (?) in the given letter cluster series. PZX, QAY, SCA, VFD, ?
Option 1: ZKH
Option 2: ZJH
Option 3: AJG
Option 4: YKH
Correct Answer: ZJH
Solution : Given: PZX, QAY, SCA, VFD, ?
In the above-given series, add the consecutive natural numbers to the place value of the letters of each term to get the next term in the series. PZX→P + 1 = Q; Z + 1 = A; X +
Question : A can finish a work in 15 days, B can finish the same work in 25 days. They work together for 5 days. The rest of the work is finished by A and C in 4 days. Then C alone can finish the work in:
Option 1: 18 days
Option 2: 24 days
Option 3: 20 days
Option 4: 21 days
Correct Answer: 20 days
Solution : Given, time taken by A and B to complete the work is 15 and 25 days respectively. Efficiency of A = $\frac{1}{15}$ units/ day Efficiency of B = $\frac{1}{25}$ units/ day Work done in 5 days by A and B = $5(\frac{1}{15}+\frac{1}{25})=\frac{8}{15}$ So, Remaining
Question : What is the number of hydrogen atoms in a molecule of calcium bicarbonate?
Option 1: 0
Option 2: 1
Option 3: 2
Option 4: 4
Correct Answer: 2
Solution : The correct answer is 2.
Another name for calcium bicarbonate is calcium hydrogen carbonate. The chemical formula for it is Ca(HCO3)2. It is clear from the preceding formula that calcium bicarbonate has two hydrogen atoms.
Question : Before the Partition of Bengal in 1905, Bengal was the biggest province of British India. It consisted of parts of which of the following states?
Option 1: Uttar Pradesh and Orissa
Option 2: Uttar Pradesh and Bihar
Option 3: Bihar and Orissa
Option 4: Bihar and Chhattisgarh
Correct Answer: Bihar and Orissa
Solution : The correct answer is Bihar and Orissa.
In 1905, Viceroy Lord Curzon implemented the partition of Bengal, a significant move in British India's administrative reorganisation. Bengal, being the largest province at the time, encompassed not only its present boundaries but also included
Question : What will a person get after 3 years at compound interest, when the principal is Rs. $S$ and the rate of interest is $2r$% per annum?
Option 1: Rs. $\frac{6Sr}{100}$
Option 2: Rs. $S(1+\frac{r}{100} )^{3}$
Option 3: Rs. $S( 1+\frac{r}{50} )^{3}$
Option 4: Rs. $3S( 1+\frac{r}{100} )^{3}$
Correct Answer: Rs. $S( 1+\frac{r}{50} )^{3}$
Solution : Given: Principal = Rs. $S$ Rate of interest = $2r$% Time = 3 years Formula : $A = P[1+\frac{R}{100}]^{n}$ Solution : $A = S[1+\frac{2r}{100}]^{3}$ $A = S[1+\frac{r}{50}]^{3}$ Hence, the correct answer is $S[1+\frac{r}{50}]^{3}$.
Question : Identify the segment that contains a grammatical error. If there is no error, select 'No error'.
Susan had recently run on to / Catherine at the supermarket, they / were seeing each other after many years.
Option 1: were seeing each other after many years.
Option 2: Catherine at the supermarket, they
Option 3: No error
Option 4: Susan had recently run on to
Correct Answer: were seeing each other after many years.
Solution : The error lies in the first option.
Explanation: The error in the original sentence is the use of "were seeing" instead of the past tense "saw". The correction "they saw each other after many years" is appropriate because
Question : Find the area of a rhombus if the perimeter of the rhombus is 52 cm, and one of its diagonals is 10 cm long.
Option 1: 120 cm2
Option 2: 164 cm2
Option 3: 160 cm2
Option 4: 144 cm2
Correct Answer: 120 cm2
Solution : The perimeter of a rhombus = 52 cm One diagonal = 10 cm Let the length of the other diagonal be $x$ cm. Perimeter = 4 × side 52 = 4 × side Side = $\frac{52}{4} = 13$ The diagonals of a rhombus
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