Average For SBI PO set 2
Average For SBI PO set 2
1. In a class of 52 students, the number of boys is two less than the number of girls. Average weight of the boys is 42 kg, While the average weight of all the 52 student is 40 kg. Approximately what is the average weight of the girls?
a) 41kg
b) 39kg
c) 40 kg
d) 38kg
e) 42kg
Explanation:
let the number of boys=x; and
number of girls = y
Now, (y-2)=x and x+y=52
y-2+y=52
2y=54
Y=27
X=25
Let the average weight of the girls be ‘a’.
Or 27×a=(52×40)-(25×42)
Or 27×a=2080-1050
a =1030/27
=38.148
=38
2. The average Income of P, Q, R, S and T is Rs 15000. The average income of P &Q is Rs 12000 and the average income of R&S is Rs 16000, find the average income of T.
a) Rs 19000
b) Rs 20000
c) Rs 23000
d) Rs 12000
e) none of these
3. The average number of coins with A, B, C and Dare 5. The average number of coins with D, E and F are 7. Find the number of coin with all the 6 people is 6.
a) 3
b) 5
c) 4
d) 7
e) 8
4. Samdha travels 1/3rd of distance from delhi to Jaipur at speed of 80km, nest 1/3rd distance at speed of 100kn. The average speed of Samdha for the entire journey is:
a) 90km
b) 89.25km
c) 90.16km
d) None of these
e) 39.67km
Explanation:
Since distance travelled at different speed is same, we can use the short cut
5. Gabbar Singh travelled from Ramgarh to Vijaygarh at speed of 60km and fromVijaygarh to laxmangarh at speed of 40km. then he returned back from laxmangarhto Ramgarh to meet Basanti, at speed of 80 km. if the distance between Ramgarh and Vijaygarh is same as distance between Vijaygarh and laxmangarh, then find the average speed of Gabbar Singh for the whole journey:
a) 48km
b) 60km
c) 56 km
d) None of these
e) 67km
Explanation:
The average speed of gabbarsingh from Ramgarh to Laxmangath
He is travel from Laxmangath toRamgarh at speed of 80km
The average speed of entire journey
6. The average income of all the employees of ABC Ltc is Rs 12000 in 1999. In the year 2000, the company gave a bonus of Rs 2000 to each of the employees,then the new average is
a) Rs 12000
b) Rs 1400
c) Rs 14000
d) None of these
e) Rs 120000
7. The average expenditure of P, Q and R is Rs 5000 per month. Also, the average expenditure of Q, R and S is Rs 7000 per month. If the average expenditure of S is thrice of that of P then the average expenditure of Q and R is:
a) Rs 6000
b) Rs 3000
c) Rs 5000
d) Rs 4000
e) none of these
8. The average age of 8 person is increased by 2 years when one of them, whose age is 24 years id replaced by a new person. The age of new person is
a) 42 years
b) 40years
c) 38years
d) 45 years
e) None of these
9. The average age of five officers in a department is 32 years. If the age of their supervisor is added, the average age increased by 1. What is the supervisor’s age?
a) 32years
b) 48years
c) 38years
d) 42 years
e) None of these
10. In a one-day cricket match the captain of one of the teams scored 30 runs more than the average runs scored by the remaining six batsmen of that team who batted in the match. If the total runs scored by all the batsman of that were 310, how many runs did the captain score?
a) 60
b) 70
c) 50
d) Cannot be determined
e) None of these
