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Question : The greatest four-digit number that is exactly divisible by each of the numbers 12, 18, 21 and 28 is:
Option 1: 9828
Option 2: 9288
Option 3: 9882
Option 4: 9928
Correct Answer: 9828
Solution : LCM of (12, 18, 21, 28) = 252 So, the required greatest 4-digit number must be divisible by 252. We know the greatest 4-digit number = 9999 Dividing this number by 252, we get the remainder 171. So, the number will be = (9999 –
Question : Directions: In a certain code language, CAUGHT is written as EYWEJR and ENGINE is written as GLIGPC. How will WORKER be written in that language?
Option 1: YMTIGP
Option 2: YMTJIP
Option 3: YMTKGP
Option 4: YMTIHP
Correct Answer: YMTIGP
Solution : Given: CAUGHT is written as EYWEJR, and ENGINE is written as GLIGPC.
Add 2 and subtract 2 alternately from the place values of the letters of CAUGHT to obtain the required code – C + 2 = E; A – 2 = Y; U +
Question : The value of $\frac{7+3 \sqrt{5}}{3+\sqrt{5}}-\frac{7-3 \sqrt{5}}{3-\sqrt{5}}$ lies between:
Option 1: 3 and 3.5
Option 2: 2 and 2.5
Option 3: 1.5 and 2
Option 4: 2.5 and 3
Correct Answer: 3 and 3.5
Solution : Given: $\frac{7+3 \sqrt{5}}{3+\sqrt{5}}-\frac{7-3 \sqrt{5}}{3-\sqrt{5}}$ = $\frac{(7+3 \sqrt{5})(3-\sqrt{5})-(7-3\sqrt5)(3+\sqrt{5})}{(3)^2-(\sqrt{5})^2}$ = $\frac{21+9\sqrt{5}-7\sqrt5-15+21+7\sqrt5-9\sqrt5-15}{9-5}$ = $\frac{6+6}{4}$ = $\frac{12}{4}$ = 3 Thus, 3 lies between 3 and 3.5 Hence, the correct answer is 3 and 3.5
Question : Directions: Which answer figure will combine with the pattern in the question figure?
Option 1:
Option 2:
Option 3:
Option 4:
Correct Answer:
Solution : On comparing the question figure and all the answer figures, the following figure will combine and make the complete pattern –
Hence, the third option is correct.
Question : Directions: Among four friends. Govind is twice the age of Krishan. Nandu is half of the age of Krishan. Gwala is 6 years older than Krishan, but 6 years younger than Govind. Who is the youngest?
Option 1: Govind
Option 2: Krishan
Option 3: Nandu
Option 4: Cannot be determined
Correct Answer: Nandu
Solution : Given: Govind is twice the age of Krishan. Nandu is half of the age of Krishan. Gwala is 6 years older than Krishan, but 6 years younger than Govind.
Let the age of Krishan be 2a Then, the age of Govind is 4a The age
Question : By selling 12 kg of potatoes for Rs. 63, a shopkeeper gains 5%. What does he gain or lose in percentage by selling 50 kg of the same potatoes for Rs. 247.50?
Option 1: 1% loss
Option 2: No profit, no loss
Option 3: 2.5% loss
Option 4: 1% profit
Correct Answer: 1% loss
Solution : Let $x$ be the cost price of the potatoes per kg. The selling price in the first case of potatoes = $\frac{63}{12}$= Rs. 5.25 per kg SP = $x$ + 5% of $x$, where SP = selling price ⇒ 5.25 = 1.05$x$ ⇒ $x$
Question : Who among the following has been named as the World Bank Education Advisor for the period of June 2021 to June 2024?
Option 1: Keishia Thorpe
Option 2: Peter Tabichi
Option 3: Vishwavir Ahuja
Option 4: Ranjitsinh Disale
Correct Answer: Ranjitsinh Disale
Solution : The correct option is Ranjitsinh Disale.
The World Bank has named Ranjitsinh Disale, a primary school teacher from Solapur, Maharashtra, who received the 2020 Global Teacher Prize, as its education advisor from June 2021 to June 2024.
Question : A sum of money doubles itself in 7 years at simple interest. In how much time will it become 5 times itself?
Option 1: 25 years
Option 2: 28 years
Option 3: 23 years
Option 4: 21 years
Correct Answer: 28 years
Solution : Given: Time($T{_1}$) = 7 years Let, Time($T{_2}$) = $t$ years Case I Let the principal be $x$ So, Amount after 7 years = $2x$ Simple interest = Amount – Principal = $2x - x$ = $x$ Interest = Principal So, $x = \frac{x \times
Question : Rajiv Gandhi international Airport is situated in?
Option 1: Jammu and Kashmir
Option 2: New Delhi
Option 3: Mangalore
Option 4: Hyderabad
Correct Answer: Hyderabad
Solution : The correct answer is Hyderabad
Hyderabad, the capital city of the Indian state of Telangana, is home to Rajiv Gandhi International Airport. It is the city's and the neighbouring region's major airport, serving both local and international flights.
Question : In approximately how much time, does Mars complete one spin on its axis?
Option 1: 1 day
Option 2: 1 day 18 hours
Option 3: 18 hours
Option 4: 16 hours
Correct Answer: 1 day
Solution : The correct option is 1 day.
This is slightly longer than a day on the Earth, which is about 24 hours. Mars completes one spin on its axis, which is roughly equivalent to a day on Mars, in about 24.6 Earth hours. This
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