NCERT Solutions Class 6 Mathematics Solutions for Exercise 3.5 in Chapter 3 - Playing With Numbers

Question 24 Exercise 3.5

18 is divisible by both 2 and 3. It is also divisible by 2 × 3 = 6. Similarly, a number is divisible by both 4 and 6. Can we say that the number must also be divisible by 4 × 6 = 24? If not, give an example to justify your answer.


No, since, 12 and 36 are both divisible by 4 and 6. But 12 and 36 are not divisible by 24

Video transcript
"hello student welcome back on a lead or doubt solving session and in today's zero doubt solving session we are going to discuss one more problem related to circle right that is the circle is a part of geometry all right okay so i'm going to read the statement if a x b and c by d opposite of a circle are concurrent then find their ratio of av and cd right okay that means from this given question okay we know that okay we have given that the two arcs are there okay are a xp and our cyt and both are the concurrent right okay that means okay our a x b it's concurrent to arc c y d all right okay that is given okay so now as we know that okay when the two arcs are concurrent right there cross correspondence correspondence okay chords are also equal right okay when the two arcs are concurrent then okay their correspondent chords will be the equal right so from this statement we can say that okay okay a b is equals to got cd all right that means a b is equals to c d right and that's why a b upon c d is equals to 1 right okay we can derive this relation right okay so in this particular case the ratio of a b and c d will be the one all right that's all about today's session i hope you like this video and if you have any doubt please do comment below and please subscribe to this channel bye"
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