The h.c.f. of two numbers is 11 and their l.c.m. is 693. if one of the numbers is 77, find the other?
a. 80
b. 57
c. 63
d. 99
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wkt, LCM(a,b)* HCF(a,b)=a*b
where a and b are two numbers
from this
11*693=77*b
b=99
where a and b are two numbers
from this
11*693=77*b
b=99
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