Question
The ratio of three numbers is 5 : 7 : 9 and their LCM is 2835. Find the sum of the greater number and the difference between the first two numbers.
The correct answer is
99
\(315x=2835;\quad x=9;\quad9x+(7x-5x)=99\)
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Important Questions from LCM and HCF
- The LCM of $3^3 \times 8^2 \times 13$, $3^2 \times 13^2 \times 16$ and $8^3 \times 13^2 \times 16^2$ is:
- The sum of two numbers is 80 and their L.C.M. is 558. What are the two numbers?
- The LCM of the numbers 6.3 and 0.07 is:
The HCF and LCM of two numbers are 11 and 330, respectively. If one of the numbers is 110, find the other one.
- The sum of two numbers is 57 and their L.C.M. is 812. What are the two numbers?
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