(1)Two years ago the average age of a family of 8 members was 18 years . After the addition of a baby, the average age of the family remains the same today. What is the age of the baby?

(a)1 year

(b) 2years

(c)4 years

(d) 31/2 years

(d)None of these

b

2) A man bought 13 shirts of Rs. 50 each , 15 pants of Rs. 60 each and 12 pairs of shoes at Rs 65 a pair. Find the average value of each article.

(a) 58.25

(b)85.52

(c )75

(d)None

a

3) The average age of 8 person in a committee is increased by 2 yrs when two men aged 35 years & 45 years are substituted by two women . Find the average age of these two women?

(a) 46 yrs

(b)48 yrs

(c )72 yrs

(d)None

b

4)The average wt. of 60 balls is 5gm. If the weight of the bag be included , the average weight increase by 0.05 gm. What is weight of bag?

(a) 5.05

(b)8.05

(c )7.55

(d)None

b

5) The average of three numbers is 27. The first is as much more than average as the second no. is less than the average. What is third no.?

(a)21

(b)24

(c )27

(d)None

c

6) The average marks obtained by 120 candidates in certain examination is 35. If the average marks of passed candidates is 39 and that of failed candidates is 15 .What is the no. of candidates who passed the examination?

(a)80

(b)90

(c )100

(d)None of these

c

7) A man covers 1/3 of his journey by train at 60km/h , next 1/3 by bus at 30 km/h and the rest by cycle at 10 km/h. Find his average speed during whole journey.

(a) 30km/h

(b) 20 km/h

(c )40 km/h

(d)None

b

8) The average attendance in a school for the first 4 days of week is 32 and for first five days is 33. How many students were present on fifth day?

(a)34

(b)33

(c )35

(d)37

(e)None

d

9) A man spends on an average Rs. 450 for the first 8 months of a year and Rs. 475 for the next 4 months. If he saves Rs. 500 that year, what is his monthly salary

(a)Rs 416.66

(b) Rs. 458.85

(c )Rs. 500

(d)None

c

10) The average weight of 24students is 50 kg. If the weight of teacher is also included , the average is 1 kg more. What is weight of teacher?

(a) 51 kg

(b)66 kg

(c )75 kg

(d)80 kg

c