Question

The H.C.F. of two numbers is 11 and their L.C.M. is 7700. If one of the numbers is 275, then the other number is:

• A. 279
• B. 283
• C. 328
• D. 308

Answer 1

The correct option is

D

308

Product of two numbers = Product of their HCF and LCM.
Let the second number be $x$
Then,
$\Rightarrow$$11\times 7700=275\times$x
$\therefore$ $x$ = $\frac{11\times 7700}{275}=308$