In the series given below if every digit is changed with the next number as per the number series and 9 will change to 0, then how many 9 are there in the new series?
456879302000100134784998नीचे दी गई शृंखला में यदि प्रत्येक अंक (डिजिट) को संख्या शृंखला के अनुसार उससे अगली संख्या से बदल दिया जाए तथा 9 बदलकर 0 हो जाए, तो नई शृंखला में कितने 9 होंगे?
456879302000100134784998
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Correct answer: D. 3
Explanation
A 9 in the new series can only come from an 8 in the original series (8 → 9); a 9 becomes 0. The digits 8 occur at three places in 456879302000100134784998 — the 8 in '68', the 8 in '78' and the last 8. So the new series has 3 nines.नई शृंखला में 9 केवल मूल शृंखला के 8 से ही बन सकता है (8 → 9); 9 बदलकर 0 हो जाता है। मूल शृंखला 456879302000100134784998 में अंक 8 तीन स्थानों पर है — '68' का 8, '78' का 8 तथा अंतिम 8। अतः नई शृंखला में 3 नौ होंगे।More Mathematical Reasoning and Aptitude questions
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