**Q1. In Arun’s opinion, his weight is greater than 65 kg but less than 72 kg. His brother does not agree with Arun and he thinks that Arun’s weight is greater than 60 kg but less than 70 kg. His mother’s view is that his weight cannot be greater than 68 kg. If all of them are correct in their estimation, what is the average of different probable weights of Arun?**

(a) 67 kg

(b) 68 kg

(c) 69 kg

(d) None of these

**Q2. The average of 20 numbers is zero. Of them, at the most, how many may be greater than zero?**

(a) 0

(b) 1

(c) 10

(d) 19

**Q4. The average of 7 consecutive numbers is 20. The largest of these numbers is:**

(a) 20

(b) 22

(c) 23

(d) 24

**Q5. The average age of the boys in a class is 16 years and that of the girls is 15 years. The average age for the whole class is:**

(a) 15 years

(b) 15.5 years

(c) 16 years

(d) Cannot be computed with the given information

**Q7. If the average marks of three batches of 55, 60 and 45 students respectively are 50, 55 and 60, then the average marks of all the students is:**

(a) 53.33

(b) 54.68

(c) 55

(d) None of these

**Q8. A car owner buys petrol at Rs 7.50, Rs. 8 and Rs. 8.50 per litre for three successive years. What approximately is the average cost per litre of petrol if he spends Rs. 4000 each year?**

(a) Rs. 7.98

(b) Rs. 8

(c) Rs. 8.50

(d) Rs. 9

**Q9. The average of six number is x and the average of three of these is y. If the average of the remaining three is z, then:**

(a) x = y + z

(b) 2x = y + z

(c) x = 2y + 2z

(d) None of these

**Q11. The average runs of a cricket player of 10 innings was 32. How many runs must he make in his next innings so as to increase his average of runs by 4?**

(a) 2

(b) 4

(c) 70

(d) 76

** **

**Q12. Of the four numbers, whose average is 60, the first is one-fourth of the sum of the last three. The first number is:**

(a) 15

(b) 45

(c) 48

(d) 60.25

**Q13. Of the three numbers, the first is twice the second and the second is twice and third. The average of the reciprocal of the numbers is 7/72. The number are:**

(a) 16, 8, 4

(b) 20, 10, 5

(c) 24, 12, 6

(d) 36, 18, 9

**Q15. The average temperature of the town in the first four days of a month was 58 degrees. The average for the second, third fourth and fifth days was 60 degrees. If the temperatures of the first and fifth days were in the ratio 7: 8, then what is the temperature on the fifth day?**

(a) 64 degrees

(b) 62 degrees

(c) 56 degrees

(d) None of these