HCF and LCM of two numbers are 7 and 140 if the two numbers are between 20 and 45 then the sum of two numbers
Answers
Answer:
sum of 2 numbers is 63
Step-by-step explanation:
HCF OF 2 NUMBERS IS 7
there 2 numbers is divisible by 7
from 20 to 45 , numbers are divisible by 7 is 21,28,35 and 42
LCM of 2 numbers is 140
LCM of 21 and 28 is 84
LCM of 28 and 35 is 140
their sum is 35 + 28 = 63
Answer:
Sum of 2 numbers is 63
Step-by-step explanation:
Given HCF and LCM of two numbers are 7 and 140 if the two numbers are between 20 and 45 then
we have to find the sum of two numbers
HCF of two numbers is 7 therefore there 2 numbers is divisible by 7
From 20 to 45 , numbers are divisible by 7 is 21,28,35 and 42
Now to choose those pair numbers whose LCM is 140
LCM of 2 numbers is 140
LCM of 21 and 28 is 84
LCM of 28 and 35 is 140
LCM of 21 and 42 is 42
Hence two numbers are 28 and 35
∴ their sum is 35 + 28 = 63