how many natural numbers up to 990 are divisible by 5and9 both but not by 7?
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Answered by
2
110 terms are divided by 9
And 198 terms are divided by 5
And 198 terms are divided by 5
shailesh22:
can you please elaborate it..i cant get
Answered by
7
990/5*9=22natural numbers are divisible by 5 and 9
Of them,3 are divisible by 7:45*7=315,2(45*7)=630 and 3(45*7)=945
22-3=19
Answer: 19 natural numbers are divisible by 5 and 9 both but not by 7
Of them,3 are divisible by 7:45*7=315,2(45*7)=630 and 3(45*7)=945
22-3=19
Answer: 19 natural numbers are divisible by 5 and 9 both but not by 7
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