Question

find the sum of the first 20 positive integers divisible by 5 and 6​

Answer 1

Answer:

6300

Step-by-step explanation:

Solution:-

To find the sum first 20 positive integers divisible by 5 and 6, first we have to take L.C.M. of 5 and 6.  

L.C.M. of 5 and 6 = 30

So, the sum of the first 20 multiples of 30 will be our answer.

30+60+90+120+150+180+210+240+270+300+330+360+390+420+450+480+510+540+570+600 = 6300

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Answer 2

Answer:

To find the sum first 20 positive integers divisible by 5 and 6, first we have to take L.C.M. of 5 and 6. So, the sum of the first 20 multiples of 30 will be our answer.

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