Quantitative Aptitude - Arithmetic Ability Questions

Q:

Three circle C1, C2 and C3 with radii r1, r2 and r3 (where r1<r2<r3) are placed as shown in the given figure. What is the value of r2?

A) √( r1r3) B) ( r1 + r3)/2
C) (2 r1r2)/( r1 + r2) D) √( r1 + r3)
 
Answer & Explanation Answer: A) √( r1r3)

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Volume and Surface Area
Exam Prep: Bank Exams

0 2322
Q:

Two pipes, when working one at a time, can fill a cistern in 3 hhrs and 4 hrs, resp while a third pipe can drain the cistern empty in 8 hrs. All the three pipes were opened together when the cistern was 1/12 full. How long did it take for the cistern to be completely full?

A) 2 hrs B) 1 hr 45 min
C) 2 hr 10 min D) 2 hr 11 min
 
Answer & Explanation Answer: A) 2 hrs

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Pipes and Cistern
Exam Prep: Bank Exams

3 2321
Q:

If 3x - 4 > 2 - x/3 and 3x + 5 > 4x - 5; then find the value of x?

A) 7 B) 10
C) -11 D) 1
 
Answer & Explanation Answer: A) 7

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Simplification
Exam Prep: Bank Exams , CAT

9 2321
Q:

Length and breadth of a rectangle are 8 cm and 6 cm respectively. The rectangle is cut on its four vertices such that the resulting figure is a regular octagon. What is the side (in cm) of the octagon?

A) 3(√11) – 7 B) 5(√13) – 8
C) 4(√7) – 11 D) 6(√11) – 9
 
Answer & Explanation Answer: A) 3(√11) – 7

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Area
Exam Prep: Bank Exams

3 2320
Q:

How many numbers are there from 700 to 950 (including both) which are neither divisible by 3 nor by 7?

A) 107 B) 141
C) 144 D) 145
 
Answer & Explanation Answer: C) 144

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Numbers

6 2319
Q:

A shopkeeper offers the following 3 schemes. Which scheme has the lowest discount percentage (all articles have same marked price)?


I. Two successive discounts of 10% and 10%


II. Buy 7 get 8


III. Buy 9 get 1 free

 

A) Only II B) Only III
C) Only II and III D) All are equal.
 
Answer & Explanation Answer: B) Only III

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Percentage
Exam Prep: Bank Exams

20 2318
Q:

Which of the following is the largest?

A) 12/49 B) 7/30
C) 13/56 D) 11/46
 
Answer & Explanation Answer: A) 12/49

Explanation:

In the given options,

12/49 can be written as 1/(49/12) = 1/4.083

7/30 can be written as 1/(30/7) = 1/4.285

13/56 can be written as 1/(56/13) = 1/4.307

11/46 can be written as 1/(46/11) = 1/4.1818

 

Here in the above,

1/4.083 has the smallest denominator and so 12/49 is the largest number or fraction.

Report Error

View Answer Report Error Discuss

Filed Under: Numbers
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO

5 2317
Q:

(P - 4)(P - 6)

Simplify the above?

Answer

(P - 4)(P - 6)


 


Now applying distributive property, we get


 


P.P - 4.P - 6.P + 6.4


 


P^2 - 10P + 24

Report Error

View answer Workspace Report Error Discuss

Subject: Simplification Exam Prep: GATE , CAT , Bank Exams , AIEEE
Job Role: Bank PO , Bank Clerk , Analyst

3 2315