The hcf and lcm of two numbers are 9 & 819 resp. the first no. when divided by 3 gives 21 as quotient. find the second no.
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Let the two numbers be a and b
To find the 1st number use the formula
Dividend =divisor×quotient+remainder
a=3×21+0=63
To find the 2nd number use the formula
a×b=hcf×lcm
63×b=9×819
63×b=7371
b=117
The 2nd number is 117.
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