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Question language / प्रश्न भाषा

The difference between the place values of 8 in the numeral 6283481 is: Explanation Place value = 80000 The second 8 is at the tens place.

संख्या 6283481 में दोनों 8 के स्थानीय मानों का अंतर कितना है? व्याख्या: The first 8 is at the ten-thousands place. Place value = 80 Difference = 80000 − 80 = 79920 पहले 8 का स्थानीय मान = 80000 दूसरे 8 का स्थानीय मान = 80 अंतर = 80000 − 80 = 79920 Unit Digit

Answer and explanation are free to read — no sign-in required.उत्तर और व्याख्या पढ़ने के लिए साइन-इन आवश्यक नहीं है।

A

0

B

83400

C

79920

✓

D

753

Correct Answerसही उत्तर

C. 79920

Explanationव्याख्या

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If the unit digit in (549 × 56 × 28* × 684) is 8, then what digit will be there in place of *? We only need unit digits: 549 → 9 56 → 6 28* → * 684 → 4 Therefore, 9 × 6 × * × 4 First, 9 × 6 × 4 = 216 So we need the unit digit of: 216 × * Since 216 ends in 6, we need: 6 × * to end in 8. Check options: 6 × 4 = 24 → unit digit 4 6 × 3 = 18 → unit digit 8 6 × 2 = 12 → unit digit 2 6 × 1 = 6 Therefore, = 3 Divisibility and Remainderयदि (549 × 56 × 28 × 684) का इकाई अंक 8 है, तो * के स्थान पर कौन-सा अंक होगा?* Explanation व्याख्या: Here 28* represents a three-digit number whose unit digit is *.Same topic · Same subject · Same exam

Explanation Cycle of 7: 7, 9, 3, 1 764 ÷ 4 = 191 with remainder 0. When remainder is 0, we take the fourth number of the cycle. Therefore, unit digit = 1.The digit in the unit place of (2137)⁷⁶⁴ is: (2137)⁷⁶⁴ का इकाई अंक क्या है? व्याख्या: Only the last digit 7 matters.Same topic · Same subject · Same exam

Explanation Therefore, unit digit = 3. For 3⁵⁸: Cycle = 3, 9, 7, 1 58 ÷ 4 leaves remainder 2. Therefore, unit digit = 9. We need the unit digit of: 7⁹⁵ − 3⁵⁸ At the unit place: 3 − 9 Borrow 10: 13 − 9 = 4 Therefore, unit digit = 4.The unit digit in (7⁹⁵ − 3⁵⁸) is: (7⁹⁵ − 3⁵⁸) का इकाई अंक क्या है? व्याख्या: For 7⁹⁵: Cycle = 7, 9, 3, 1 95 ÷ 4 leaves remainder 3.Same topic · Same subject · Same exam

Explanation Any even number multiplied by a number ending in 5 ends in 0. Also, (241)⁴⁹¹ ends in 1, which does not change the unit digit. Therefore, Even number × number ending in 5 × number ending in 1 Unit digit = 0What is the unit digit in (3254)¹⁷⁹³ × (415)³¹⁷ × (241)⁴⁹¹? (3254)¹⁷⁹³ × (415)³¹⁷ × (241)⁴⁹¹ का इकाई अंक क्या है? व्याख्या: (3254)¹⁷⁹³ ends in an even digit because its base ends in 4. (415)³¹⁷ always ends in 5.Same topic · Same subject · Same exam

ExplanationThe unit digit in (584 × 428 × 667 × 213) is: (584 × 428 × 667 × 213) का इकाई अंक क्या है? व्याख्या: Only unit digits are required: 4 × 8 × 7 × 3 4 × 8 = 32 → unit digit 2 2 × 7 = 14 → unit digit 4 4 × 3 = 12 → unit digit 2 Therefore, answer = 2.Same topic · Same subject · Same exam

Question 1 Arrange the fractions 5 9, 4 7, 3 5 and 2 3 in ascending order. 9, 4 7, 3 Explanation 5 9 ≈ 55.55% 4 7 ≈ 57.14% 3 5 = 60% 2 3 ≈ 66.67% Therefore:भिन्नों 5 5 और 2 3 को आरोही क्रम में व्यवस्थित कीजिए। व्याख्या Convert the fractions into percentages to compare their values easily. भिन्नों के मानों की आसानी से तुलना करने के लिए उन्हें प्रतिशत में बदलें। अतः:Same topic · Same subject · Same exam

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