Question
Find the largest number of the five digit which is
exactly divisible by 48, 72 and 108.Solution
LCM of 48, 72 and 108 = 432 Largest number of five digit =99,999 When we divide 99,999 by 432, we get 207 as remainder Required number = 99,999 – 207= 99,792
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A is younger than B by 4 years. If the ratio of A and B ages is 5:7 respectively, then find the age of A.
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3 years ago, the ratio of the ages of A and B was 2:3 and after 4 years it will become 5:7. Find their present ages.
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