Quantitative Aptitude - 7 (February 24) - Bank Exams MCQ

2660 + 57 – (?)² = 217 
(?)² = 2717 – 217 
(?)² = 2500
? = 50 

(268.20 – 76.2) – ?  = 144
? = 192 – 144
? = 48

(91.7 + 84.3) – 169 = ?
? = 7 

37×? = 99900
? = 2700

? = 35

I. x³ – 14 – 1714 = 0           
x³ = 1728              
x = 12    
II. 3y² – 63 – 300 = 0         
3y² = 363         
y² = 121            
y = ± 11  
Therefore, x > y 
Hence, option A is correct.

550 – 125/250 × 100 = 77.25% ≈ 77%
Hence, option E is correct.

Total private sector employees
⇒ 200 + 25 + 50 + 175 + 100 ⇒ 550
Total employee ⇒ 1565 + 550 = 2115
According to question
Reqd. % = 550/2115 x 100 = 26%
Hence, option A is correct.

Total private sector Employee = 550
10% of 550  ⇒ 55
Delhi & Chennai has less than 10% of mumbai's public sector employees.
Hence, option D is correct. 

Profit in 2007 = 45 – 40 = 5
Profit in 2008 = 60 – 50 = 10
Difference in profit of 2007 & 2008 
⇒ 10 – 5 = 5.
Hence, option A is correct.

Let the depth of the tank be h meters. then,
π × (7)²× h = 1848   ⇔   h = 
= 12m.
Hence, option D is correct.  

Let the radii of the cylinder and cone be 3r and 4r and their heights be 2h and 3h respectively.


Hence, option A is correct.

Volume required in the tank (200 × 150 × 2) = 60000m³
Length of the water column flown in 1 min.

Volume flows per minute 

∴ Reqd. time

Hence, option B is correct.

According to the question,

Adding eqn. (i), (ii) and (iii), we get


Subtracting Eqn. (ii) from Eqn.(iv), we get

Therefore, A will take 30 days to finish the whole work working alone.
Now, Subtracting Eqn. (i) from Eqn.(iv), we get

Therefore, C will take 60 days to finish the whole work working alone.
∴   Reqd ratio of days = 30 : 60 = 1 : 2 Hence, option E is correct.

Let the present worth be Rs. x. Then, S.I = Rs. (132 - x).
Applying a formula,


⇒ 10x = 13200 - 100x  ⇔  110x  = 13200
⇒ 120.
Hence, opiton C is correct.