అర్థమేటిక్ & రీజనింగ్ గ్రూప్
Відкрити в Telegram
✅ #GROUP_DISCUSSION
Показати більшеКраїна не вказанаКатегорія не вказана
6 341
Підписники
Немає даних24 години
Немає даних7 днів
Немає даних30 днів
Архів дописів
The answer is (1) 250.
The sum of the first n odd positive integers is given by
O = 1 + 3 + 5 + ... + (2n - 1) = n^2
The sum of the first n even positive integers is given by
E = 2 + 4 + 6 + ... + 2n = n(n + 1)
Therefore, E100 - O100 = 100^2 - 100^2 = 250.
Here is the explanation of the problem:
The first n odd positive integers are 1, 3, 5, ..., 2n - 1.
The sum of these odd numbers is equal to n^2.
The first n even positive integers are 2, 4, 6, ..., 2n.
The sum of these even numbers is equal to n(n + 1).
Therefore, the difference between the sum of the first n even positive integers and the sum of the first n odd positive integers is equal to n(n + 1) - n^2 = 2n.
When n = 100, the difference is equal to 2 * 100 = 200.
Therefore, the answer is (1) 250.
If present son : mother ages = 5:30
Diff b/w sond nd mother 25 yrs ..
If son becomes mother age (5+25=30)
Mother's age 30+25=55
Father: mother = 65: 55
Then father present age 65-25=40 yrs
🏁 The quiz 'పార్లమెంట్' has finished!
25 questions answered
🥇 Bhavani D/o Shankar – 13 (4 min 4 sec)
🥈 Kumaraswamy.R – 12 (7 min)
🥉 @Shatajchoti – 10 (3 min 48 sec)
4. Sammu – 10 (4 min 38 sec)
5. Kurakula Aruna – 8 (4 min 13 sec)
6. ãMřÜťH – 8 (8 min 19 sec)
7. Vallala Suman – 6 (3 min 41 sec)
8. L L – 5 (2 min 35 sec)
9. S J – 5 (3 min 51 sec)
10. @CSK05 – 5 (7 min 24 sec)
11. Rajavarapu GovindBhavani – 4 (1 min 9 sec)
12. @RM_syte – 4 (2 min 45 sec)
13. @MIfyER – 3 (50.1 sec)
14. Sharanya – 3 (3 min 31 sec)
15. @sandy – 2 (1 min 34 sec)
16. @MadhuNaidu952 – 2 (1 min 38 sec)
17. N Chandu – 2 (2 min 7 sec)
18. @muhammadnaveed308 – 2 (2 min 27 sec)
19. @ROCKY_BHAI76667 – 1 (6.3 sec)
20. @Ujjwal_9 – 1 (14 sec)
🏆 Congratulations to the winners!
