Question

two numbers are in the ratio 5:7 and their LCM is 315, their product is?​

Answer 1

Answer:

With

Step-by-step explanation:

Let the numbers be 5a and 7a

HCF = a

LCM = 315

We know that,

Product of numbers = LCM *HCF

=> 5a*7a = 315 * a

=> 35a^2 = 315a

=> 35a = 315

=> a = 315 / 35

=> a = 9

First number = 45

Second number = 63

Product of them is-----

45*63

=2835

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