1000+ Suncorp Bank Aptitude Test Questions and Answers Pdf - 1

Question: 1

Average age of seven persons in a group is 30 years. The average age of five persons of this group is 31 years. What is the average age of the other two persons in the group?

(A) 15 years

(B) 26 years

(C) 27.5 years

(D) 55 years

Ans: C

The total age of 7 persons = 30 × 7 = 210 years.

Total age of 5 persons = 31 × 5 = 155 years.

∴ The total age of 2 persons = (210 - 155) years = 55 years.

∴ The average age of two persons = $${55}/{2}$$ = 27.5 years.

Question: 2

The average of six numbers is 20. If one number is removed, the average becomes 15. What is the number removed?

(A) 15

(B) 25

(C) 35

(D) 45

Ans: D

Required number = Sum of six numbers - sum of five numbers

= 6 × 20 - 15 × 5 = 120 - 75 = 45.

Question: 3

Ten years ago the average age of P and Q was 20 years. Average age of P, Q and R is 30 years now. After 10 years, the age of R will be

(A) 30 years

(B) 35 years

(C) 40 years

(D) 45 years

Ans: C

(P + Q)’s present age = 40 + 20 = 60 years

(P + Q + R)’s present age = 90 years

R’s present age = (90 - 60) = 30 years

R’s age after 10 years = (30 + 10) = 40 years.

Question: 4

The sum of five numbers is 260. The average of the first two numbers is 30 and the average of the last two numbers is 70. What is the third number?

(A) 33

(B) 60

(C) 65

(D) 75

Ans: B

Sum of first two numbers = 30 × 2 = 60

Sum of last two numbers = 70 × 2 = 140

∴ Third number = 260 - 140 - 60= 60

Question: 5

The average of 17 numbers is 10.9. If the average of first nine numbers is 10.5 and that of the last 9 numbers is 11.4, the middle number is

(A) 10.9

(B) 11.7

(C) 11.4

(D) 11.8

Ans: D

Sum of first nine numbers + sum of last nine numbers

= 10.5 × 9 + 11.4 × 9 = 21.9 × 9 = 197.1

Hence, the middle number

= 197.1 – 17 × 10.9

= 197.1 – 185.3 = 11.8.

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