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Q:

The number of symbols that are preceded by a number in the given expression is ____.

R+JM2$#QR?*O@7F3

 

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

Explanation:
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Filed Under: Alphabet Test
Exam Prep: Bank Exams , CAT

Q:

If length of a rectangle is decreased by 6 cm we get a square and the area of square formed is 252 cm2 less than the area of square formed when breadth of the original rectangle is increased by 6 cm. Find the perimeter of the rectangle.

A) 66 cm B) 88 cm
C) 80 cm D) 72 cm
 
Answer & Explanation Answer:

Explanation:

Let length and breadth of rectangle be L cm
and B cm respectively So, ATQ
Area1= (L-6)×B
But this is square, so L-6=B
Area1= (L-6) × (L-6)
Case 2, Area2= L × (B+6),
L=B+6
So, Area2= L × L,
Given, Area2-Area1= 252(L)2-(L-6)2=252
Solving this, L= 24
B= 18
Perimeter= 2(L+B)= 2(24+18)= 84 cm

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

Q:

A swimming pool is filled in 10 hours by three tankers A, B and C. The tanker C is twice as fast as B and B is twice as fast as A. How much time will tanker A alone take to fill the swimming pool?

A) 90 hours B) 40 hours
C) 70 hours D) 80 hours
 
Answer & Explanation Answer: C) 70 hours

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Filed Under: Pipes and Cistern
Exam Prep: AIEEE , Bank Exams , CAT

Q:

Equal distance is covered by a boat in upstream and in downstream in total 5 hours. Sum of speed of a boat in upstream and downstream is 40 km/hr. Speed of boat in still water is 600%
more than the speed of stream. Find theapproximate distance covered by boat in downstream (in km).

A) 45 B) 50
C) 55 D) 60
 
Answer & Explanation Answer: B) 50

Explanation:

let speed of boat= X, speed of stream= Y
Upstream speed= X-Y
Downstream speed= X+Y
Sum of upstream & downstream= (X-Y) +(X+Y)= 2X
So, 2X= 40
X= 20 km/hr
Speed of boat : speed of stream= 600+100 :100= 7:1
So speed of Stream= 20/7 km/hr
ATQ, D/( X-Y) + D/( X+Y) = 5
D/(120/7) + D/(160/7)= 5
D= 480×5/49= 48.97 km= 50 Km(approx)

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Filed Under: Boats and Streams
Exam Prep: Bank Exams , GATE

Q:

In the following series, one term is missing as shown by the question mark?. Select the missing term from the given options.

ST, TU, UV, VW, ?

A) WY B) WX
C) WZ D) WV
 
Answer & Explanation Answer: B) WX

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Filed Under: Alphabet Test

Q:

In a class, there were 9 boys and some girls. In a test the mean score obtained by the boys was 12 while that obtained by the girls was 14. If the overall average was 13.1, what was the total number of students in the calss?

A) 21 B) 20
C) 22 D) 19
 
Answer & Explanation Answer: B) 20

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Filed Under: Average
Exam Prep: Bank Exams

Q:

By which of the following processes are metals of high reactivity extracted from purified molten ore?

A) Reduction by an appropriate reducing agent B) Roasting
C) Electrolysis D) Calcination
 
Answer & Explanation Answer: C) Electrolysis

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Filed Under: Chemistry
Exam Prep: Bank Exams , AIEEE

Q:

By which legislation were India and Pakistan divided into two independent nations?

A) Pakistan Independence Act 1947 B) Indian Independence Act 1947
C) Indian partition Act 1947 D) Pakistan partition Act 1947
 
Answer & Explanation Answer: B) Indian Independence Act 1947

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Filed Under: Indian History
Exam Prep: CAT , Bank Exams , AIEEE