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