Quantitative Aptitude - Arithmetic Ability Questions

Q:

ΔABC is right angled at B. If m∠C = 60°, then find the value of (cotA - 1/2).

A) -1/√3 B) (3-√2)/3√2
C) (2√3-1)/2 D) (√2-√3)/√6
 
Answer & Explanation Answer: C) (2√3-1)/2

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Simplification
Exam Prep: Bank Exams

0 1314
Q:

If Sin4A - Cos4A = 1 then (A/2) in degrees is 0° < A  90°

 

A) 60 B) 45
C) 40 D) 30
 
Answer & Explanation Answer: B) 45

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Simplification
Exam Prep: Bank Exams

1 1314
Q:

Consider two-digit numbers which remain the same when the digits interchange their positions. What is the average of such two-digit numbers?

 

A) 33 B) 44
C) 55 D) 66
 
Answer & Explanation Answer: C) 55

Explanation:

All such 2 digit numbers are 11,22,33,44....... upto 99

Forms an AP

So sum = n/2(a+l)

= 9/2(11+99)

Average = sum/9 = ½(11+99) = 55

 

Report Error

View Answer Report Error Discuss

Filed Under: Numbers
Exam Prep: Bank Exams

0 1314
Q:

If a person bought an item for Rs. 96 and sold it at a profit of 12.5%, the selling price of the item was

A) Rs. 105 B) Rs. 110
C) Rs. 108 D) Rs. 112
 
Answer & Explanation Answer: C) Rs. 108

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Profit and Loss
Exam Prep: Bank Exams

0 1314
Q:

If tan a = √3 + 2, then the value of tan a - cot a is

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

Explanation:
Report Error

View Answer Report Error Discuss

0 1314
Q:

In figure, DE || BC. If DE = 3 cm, BC = 6 cm and area of ΔADE = 15 sq cm, then the area of ΔABC is

A) 75 sq cm B) 45 sq cm
C) 30 sq cm D) 60 sq cm
 
Answer & Explanation Answer: D) 60 sq cm

Explanation:
Report Error

View Answer Report Error Discuss

0 1314
Q:

In the following question, select the odd word pair from the given alternatives.

A) Sister – Brother B) Son – Friend
C) Father – Daughter D) Mother – Son
 
Answer & Explanation Answer: B) Son – Friend

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Odd Man Out
Exam Prep: Bank Exams

1 1313
Q:

Select the odd word/letters/number/number pair from the given alternatives.

A) 7214 B) 3618
C) 3519 D) 9436
 
Answer & Explanation Answer: C) 3519

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Odd Man Out
Exam Prep: Bank Exams

0 1313