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Arrange the following peninsula of Europe in Left to Right direction?
1. Crimean Peninsula
2. Italian Peninsula
3. Balkan Peninsula
4. Iberian Peninsula
Select the correct answer using the codes given below:
Consider the following statements regarding phenomena related to space science:
1. The Roche Limit describes the minimum distance within which a celestial body held together by gravity will disintegrate due to tidal forces.
2. The Carrington Event refers to a historical solar storm that caused widespread disruption to Earthβs magnetic field and telecommunication systems.
3. The Fermi Paradox explains why humanity has yet to establish contact with extraterrestrial civilizations despite the high probability of their existence.
Which of the statements given above is/are correct?
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225 = 9 * 25
For the number to be divisible by 225 it has to be divisible by both 9 and 25
For divisibility by 25, the last two digits should be zeroes or they should form a number which is multiple of 25. Hence we need 2 zeroes
For divisibility by 9, the sum of digits should be a multiple of 9. Only ones contribute to sum,and the least multiple of 9 is 9 itself; hence 9 ones
So, the number should have 9 ones and 2 zeroes or 11 digits
Let the numbers be x and y
Then 4641*21 = x * y
Numbers can also be expressed as multiples of the HCF. Thus, x= 21a and y = 21b
Now 4641 * 21 = 21a * 21b
Or 13*17*21 *21= 21a *21b
Comparing LHS and RHS, a and b are 13*21 (=273) and 17*21(=357) in any order.
The answer is 357
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What is the least number of digits in the number formed from only zeroes and ones such that the number is divisible by 225?
The HCF of two numbers is 21 and their LCM is 4641. If one of the numbers is between 200 and 300, find the other number.
