The average amount with a group of seven numbers is Rs. 20. If the newly joined member has Rs. 50 with him, what was the average amount with the group before his joining the group?

Related Mcqs:

1. The sum of five numbers is 655. The average of the first two numbers is 85 and the third number is 125. Find the average of the two numbers?

   A. 180
   B. 170
   C. 190
   D. 175

2. Ameen started a business investing Rs. 70,000. Rahim joined him after six months with an amount of Rs. 1,05,000 and sameer joined them with Rs. 1.4 lakhs after another six months. The amount of profit earned should be distributed in what ratio among Ameen, Rahim and Sameer respectively, 3 years after Ameen started the business?

   A. 7:6:10
   B. 12:15:16
   C. 42:45:56
   D. Cannot be determined
   E. None of these

3. The average weight of a group of boys is 30 kg. After a boy of weight 35 kg joins the group, the average weight of the group goes up by 1 kg. Find the number of boys in the group originally?

   A. 4
   B. 5
   C. 6
   D. 7

4. The average age of seven persons sitting in a row facing east is 28 years. If the average age of the first three persons is 21 years and the average age of the last three persons is 34 years, then find the age of the person sitting in the middle of the row?

   A. 30 Years
   B. 31 years
   C. 26 years
   D. 33 years

5. A cricketer has a certain average for 10 innings. In the eleventh inning, he scored 108 runs, there by increasing his average by 6 runs. His new average is_____________?

   A. 48 runs
   B. 52 runs
   C. 55 runs
   D. 60 runs

6. The present average age of a family of five members is 26 years. If the present age of the youngest member in the family is ten years, then what was the average age of the family at the time of the birth of the youngest member ? (Assume no death occurred in the family since the birth of the youngest).

   A. 18 years
   B. 14 years
   C. 20 years
   D. 16 years

7. A batsman in his 17th innings makes a score of 85 and their by increasing his average by 3. What is his average after the 17th innings?

   A. 34
   B. 35
   C. 36
   D. 37

8. In an examination a pupil’s average marks were 63 per paper. If he had obtained 20 more marks for his Geography paper and 2 more marks for his History paper, his average per paper would have been 65. How many papers were there in the examination?

   A. 8
   B. 9
   C. 10
   D. 11

9. A man rides his bicycle 10 km at an average speed of 12 km/hr and again travels 12 km at an average speed of 10 km/hr. What is his average speed for the entire trip approximately?

   A. 11.2 kmph
   B. 10 kmph
   C. 10.2 kmph
   D. 10.8 kmph

10. The average of five consecutive odd numbers is 61. What is the difference between the highest and lowest numbers?

    A. 2
    B. 5
    C. 8
    D. Cannot be determined