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Question : The highest common factor of 120, 360, and 210 is:
Option 1: 12
Option 2: 30
Option 3: 3
Option 4: 15
Correct Answer: 30
Solution : Factors of 120 = 2 × 2 × 2 × 3 × 5 Factors of 360 = 2 × 2 × 2 × 3 × 3 × 5 Factors of 210 = 2 × 3 × 5 × 7 $\therefore$ The highest common factor of
Question : Directions: Four letter clusters have been given, out of which three are alike in some manner and one is different. Select the different letter clusters.
Option 1: BKYP
Option 2: GDTW
Option 3: SXHD
Option 4: XJCQ
Correct Answer: SXHD
Solution : Let's check each option – First option: BKYP; B and Y, and K and P are the opposite letter pairs. Second option: GDTW; G and T, and D and W are the opposite letter pairs. Third option: SXHD; S and H form the opposite letter
Question : Select the most appropriate option to substitute the underlined segment in the given sentence.
Our guests arrived; they are sitting in the garden.
Option 1: shall arrive
Option 2: have arrived
Option 3: are arriving
Option 4: might arrive
Correct Answer: have arrived
Solution : The correct choice is the second option.
The original sentence suggests a chronological order of events, with the guests arriving first and then sitting in the garden and thus, the previous action has relevance to the following action. Therefore, have arrived is more appropriate
Question : Which disease is caused by Nickel?
Option 1: Itai-Itai
Option 2: Dermatitis
Option 3: Learning disability
Option 4: Asthma
Correct Answer: Dermatitis
Solution : The correct option is dermatitis
Nickel is linked to an illness known as "nickel allergy" or "nickel dermatitis". This is a hypersensitive reaction to nickel, a metal that is often found in jewellery, clothes fasteners, and metal alloys. Individuals with nickel allergies may experience redness,
Question : Alloy A contains metals x and y only in the ratio 5 : 2 and alloy B contains these metals in the ratio 3 : 4. Alloy C is prepared by mixing A and B in the ratio 4 : 5. The percentage of x in alloy C is:
Option 1: $45$
Option 2: $55 \frac{5}{9}$
Option 3: $44 \frac{4}{9}$
Option 4: $56$
Correct Answer: $55 \frac{5}{9}$
Solution : Quantity of metal $x$ in alloy A = $\frac{5}{7}$ Quantity of metal $y$ in alloy A = $\frac{2}{7}$ Quantity of metal $x$ in alloy B = $\frac{3}{7}$ Quantity of metal $y$ in alloy B = $\frac{4}{7}$ According to the question, The ratio of $x$
Question : The average of 20 numbers is 30 and that of the other 30 numbers is 50. What is the average of all the numbers?
Option 1: 42
Option 2: 47
Option 3: 44
Option 4: 45
Correct Answer: 42
Solution : Total numbers = 20 + 30 = 50 Average = $\frac{(20×30)+(30×50)}{20+30}$ = $\frac{600+1500}{50}$ = $\frac{2100}{50}$ = $42$ Hence, the correct answer is 42.
Question : Directions: In the following question, a sentence is given with a blank that is to be filled in with an appropriate word. Four alternatives are suggested; choose the correct alternative out of them as your answer.
He agreed ___ my business proposal.
Option 1: at
Option 2: for
Option 3: on
Option 4: to
Correct Answer: to
Solution : The fourth option is the correct answer, as ''to'' fits perfectly in the sentence.
The phrase "agree with" is used to refer to agreeing with a person, and the phrase "agree to" is used to refer to agreeing with a non-person,
Question : Why does a black board appears black in colour?
Option 1: It reflects black colour
Option 2: It absorbs black colour
Option 3: It reflects all colours
Option 4: It absorbs all the colours
Correct Answer: It absorbs all the colours
Solution : The correct option is it absorbs all colours.
When light, which is a blend of different wavelengths that correspond to different colors hits the blackboard, a sizeable percentage of it is absorbed, and very little of it is reflected. The surface's
Question : Directions: If + means ×, × means –, – means ÷, and ÷ means +, then what will come in place of the (?) in the following equation? 9 + 3 ÷ 2 × 135 – 15 = ?
Option 1: 22
Option 2: 25
Option 3: 18.5
Option 4: 20
Correct Answer: 20
Solution : Given: + means ×, × means –, – means ÷, and ÷ means + 9 + 3 ÷ 2 × 135 – 15 = ?
After replacing the symbols according to the question, the equation is as follows – = 9 × 3 + 2
Question : Directions: Select the figure from among the given options that can replace the question mark (?) in the following series.
Option 1:
Option 2:
Option 3:
Option 4:
Correct Answer:
Solution : According to the given question figure, 1. The circle is shaded half part and quarter part alternatively. 2. The circle is rotated by 90 degrees in clockwise direction. 3. The parallelogram rotated by 90 degrees in an anticlockwise direction. Thus, following the above pattern, the missing
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