1800/40=30+45+15-X-Y
So X+Y=45
X=30 Given
So Y=15A
Hcf*lcm=ab
1*lcm=1599
Lcm=1599
Fill in the blank.
(xn - 27) is divisible by (x-3), when n is equal to ______.
Using the property: (a3 – b3) = (a – b)(a2 – a*b + b2)
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Fav cases / total cases = 5/25 = 1/5
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to find the least number added to the digit , we first divide the number by 21 and find the remainder.
after dividing the number by 21 we get quotient 177 and remainder 19. so by adding 2 it will complete to 21 and completely divided by 21.
so your answer is 2