Q1. The average of 18, 24, 30, 36 and x is 30. Find x.
18, 24, 30, 36 और x का औसत 30 है। x ज्ञात कीजिए।
Average, Percentage, Profit & Loss, Simple Interest, Area & Perimeter – 50 Questions
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Q2. The average marks of 30 students is 56. If the teacher's marks are also included, the average becomes 57. What are the teacher's marks?
30 विद्यार्थियों के अंकों का औसत 56 है। यदि शिक्षक के अंक भी जोड़ दिए जाएँ, तो औसत 57 हो जाता है। शिक्षक के अंक कितने हैं?
Q3. The average age of 8 persons is 24 years. One person aged 32 years leaves and a person aged 20 years joins. Find the new average age.
8 व्यक्तियों की औसत आयु 24 वर्ष है। 32 वर्ष का एक व्यक्ति चला जाता है और 20 वर्ष का एक व्यक्ति शामिल होता है। नई औसत आयु ज्ञात कीजिए।
Q4. A batsman has an average of 48 runs after 20 innings. How many runs must he score in the 21st inning to raise the average to 50?
एक बल्लेबाज का 20 पारियों के बाद औसत 48 रन है। औसत 50 करने के लिए उसे 21वीं पारी में कितने रन बनाने होंगे?
Q5. The average of seven consecutive odd numbers is 35. What is the largest number?
सात क्रमागत विषम संख्याओं का औसत 35 है। सबसे बड़ी संख्या कौन-सी है?
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