Quantitative Aptitude - Arithmetic Ability Questions

Q:

Three consecutive integers form the lengths of a right-angled triangle. How many sets of such three consecutive integers is/are possible?

A) Only one B) Only two
C) Only three D) Infinitely many
 
Answer & Explanation Answer: A) Only one

Explanation:

let n-1, n, n+1 be 3 consecutive integers

So

(n+1)^2= n^2+ (n-1)^2

(n+1)^2-(n-1)^2= n^2

4n = n^2

So n = 0 or n = 4

n can’t be 0 as n-1 will be negative then

So 3,4 and 5 is the only triplet formed.

Report Error

View Answer Report Error Discuss

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

0 1267
Q:

All sides are congruent in a _____.

A) Rectangle B) Parallelogram
C) Rhombus D) Kite
 
Answer & Explanation Answer: C) Rhombus

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Area
Exam Prep: Bank Exams

1 1267
Q:

What is the measure of an interior angle of a regular polygon of 10 sides?

A) 150 B) 156
C) 144 D) 160
 
Answer & Explanation Answer: C) 144

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Area
Exam Prep: Bank Exams

0 1267
Q:

ΔDEF is right angled at E. If secD = 25/7, then what is the value of cosecF ?

A) 7/25 B) 24/7
C) 25/7 D) 7/24
 
Answer & Explanation Answer: C) 25/7

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Simplification
Exam Prep: Bank Exams

0 1267
Q:

A bank offers 20% compound interest per half year. A customer deposits Rs 2800 each on 1st January and 1st July of a year. At the end of the year, the amount he would have gained by way of interest is ______.

A) Rs 3584 B) Rs 896
C) Rs 1792 D) Rs 448
 
Answer & Explanation Answer: C) Rs 1792

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Compound Interest
Exam Prep: Bank Exams

0 1267
Q:

If the perimeter of a semicircle is 36 cm, then find its area (in cm2).

A) 154 B) 35
C) 77 D) 70
 
Answer & Explanation Answer: C) 77

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Area
Exam Prep: Bank Exams

0 1266
Q:

The circumference of a circle is 88 cm. Find its radius (in cm).

A) 28 B) 15
C) 14 D) 30
 
Answer & Explanation Answer: C) 14

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Area
Exam Prep: Bank Exams

2 1266
Q:

Let ΔABC and ΔABD be on the same base AB and between the same parallels AB and CD. Then the relation between areas of triangles ABC and ABD will be

A) 1 B) 2
C) 3 D) 4
 
Answer & Explanation Answer: D) 4

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Simplification
Exam Prep: Bank Exams

0 1266