CBSE BOARD X, asked by sarav6143, 11 months ago

Find the smallest number which when increased by 20 exactly divisible by 90 and 144

Answers

Answered by MarcosDemon

For the smallest multiple we will calculate L.C.M of given numbers

that is l.c.m of 90,144 is 720

so according to the question 720 +20=740

so,the answer is 740

MarcosDemon: answer is wrong

InsaneKiller: yes

MarcosDemon: u have reported my answer

InsaneKiller: firstly take out lcm of 90 and 144 which is 720, now do 720-20=700

MarcosDemon: wrong

Jb94: ans is 700

MarcosDemon: no

MarcosDemon: ans will come when we subtract 20 from both no.

MarcosDemon: 90-20=70 144-20=124

MarcosDemon: now take the l.c.m the ans will come

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