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A sum of money is borrowed and paid back in two equal instalments of rs 882,allowing 5% compound interest. Find the sum borrowed

Are there any tricks to solve para jumbles??

1+2=

Is there any trick to solve para jumbles?

about sports and go

about sports and go

about sports and go

Solution: By Fermat's theorem as 24 and 7 are co­primes, remainder of 24^6 mod 7 =1. Hence,24^13 can be split up as 24^6* 24^6* 24 mod 7 = 1*1*3 mod 7 =3. Hence, remainder is 3. How is 24 mod 7 calculated here

Four unique even numbers are arranged in ascending order and the first two are decreased by 50%, while the last two are increased by 50%. If the original sum of the 4 numbers was 162, the new sum can be?
In the solution it is mentioned that the last two numbers must be 4 greater than the first two. Why?

I am basically from commerce field,so I cant understand geometry very well....what should I do to improve geometry?