Sawaal
7
Q:

Two numbers are such that the sum of twice the first number and thrice the second number is 36 and the sum of thrice the first number and twice the second number is 39. Find the difference between the numbers?

A) 15 B) 3
C) 9 D) 6

Answer:   A) 15



Explanation:

Let the required two numbers be a, b

From the given data,

2a + 3b = 36 .....(1)

3a + 2b = 39 .....(2)

Now, by solving 1 and 2 eqnts, we get

5a = 45

a = 9 ....(3)

Put (3) in (1), we get

2(9) + 3b = 36

=> 18 + 3b = 36

3b = 36 - 18

=> b = 18/3 = 6

 

Required, difference between the numbers = a + b = 9 + 6 = 15.

Subject: Simplification - Quantitative Aptitude - Arithmetic Ability
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO
Related Questions
Q:

If (cos2 θ -1)(1+tan2 θ)+2 tan2 θ =1, 0°<θ<90° then θ is:

 

 

 

A) 30° B) 90°
C) 60° D) 45°
 
Answer & Explanation Answer: D) 45°

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Simplification - Quantitative Aptitude - Arithmetic Ability
Exam Prep: Bank Exams

0 220
Q:

The value of sin 30°cos 60°sin 60°cos 30°- tan 45° is

 

A) 5 B) 0
C) 2-22 D) 2
 
Answer & Explanation Answer: B) 0

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Simplification - Quantitative Aptitude - Arithmetic Ability
Exam Prep: Bank Exams

0 439
Q:

Solve the following

113 × 87 =?

 

A) 9831 B) 10026
C) 10169 D) 10000
 
Answer & Explanation Answer: A) 9831

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Simplification - Quantitative Aptitude - Arithmetic Ability
Exam Prep: Bank Exams

0 772
Q:

In ΔABC measure of angle B is 90 deg. If tanA = 12/5, and AB = 1cm, then what is the length (in cm) of side BC?

 

A) 2.6 B) 2.4
C) 1.5 D) 2
 
Answer & Explanation Answer: B) 2.4

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Simplification - Quantitative Aptitude - Arithmetic Ability
Exam Prep: Bank Exams

0 116
Q:

ΔXYZ is right angled at Y. If m∠X = 60 deg, then find the value of (cotZ + 2)

 

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

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Simplification - Quantitative Aptitude - Arithmetic Ability
Exam Prep: Bank Exams

0 542
Q:

If a3 = 93 + 1263+ 2173,then which of the following is correct?

 

A) a=2197 B) a>2197
C) a<2197 D) a<1728
 
Answer & Explanation Answer: B) a>2197

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Simplification - Quantitative Aptitude - Arithmetic Ability
Exam Prep: Bank Exams

0 599
Q:

Find the number of solutions a pair of linear equation (4x-9y+13=0 and 2x+3y-13=0) have.

 

A) 1 B) 2
C) 10 D) infinite
 
Answer & Explanation Answer: A) 1

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Simplification - Quantitative Aptitude - Arithmetic Ability
Exam Prep: Bank Exams

0 556
Q:

Find the area (in sq units) of the triangle formed by lines x - 3y = 0, x – y = 4 and x + y = 4.

 

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

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Simplification - Quantitative Aptitude - Arithmetic Ability
Exam Prep: Bank Exams

0 544