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How many numbers are there less than 2020 and co-prime to both 2 and 5?​

Answer»

202Step-by-step explanation:jis sankhya ke ant MEIN zero aata HAI use sankhya mein hi 2 aur 5 ka BHAG ja sakta hai haiby ap10,20,30…...................2020a=10d=10An=2020n=?a+(n-1)d=An10+(n-1)10=2020n=202



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