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Q:

The price of pulses has increased by 25%. The percentage of reduction that a family should effect in the use of pulses so as not to increase the expenditure on this account is ?

A) 16% B) 20%
C) 84% D) 72%
 
Answer & Explanation Answer: B) 20%

Explanation:

Reduction in consumption
= P100+P X 100%
= 25100+25 X 100%
= 20%

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Filed Under: Percentage
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4 5602
Q:

The average score of boys in an examination in a school is 81 and that of the girls is 83 and the average score of the school is 81.8. Then what will be ratio between the number of girls to the number of boys, in the examination?

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

Explanation:

Let the number of boys = b

Let the number of girls = g

From the given data,

 

81b + 83g = 81.8(b + g)

81.8b - 81b = 83g - 81.8g

0.8b = 1.2g

b/g = 1.2/0.8 = 12/8 = 3/2

=> g : b = 2 : 3

 

Hence, ratio between the number of girls to the number of boys = 2 : 3.

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Filed Under: Average
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Q:

A can do a piece of work in 15 days and B can do it in 16 days and C can do it 24 days. They started the work together and A leaves after 3 days and B leaves after 4 days from the beginning. How long will work lost ?

A) 10 2/3 days B) 13 1/5 days
C) 12 2/3 days D) 11 5/7 days
 
Answer & Explanation Answer: B) 13 1/5 days

Explanation:

3/15 + 4/16 + x/24 = 1

⇒x=1315

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Filed Under: Time and Work
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3 5600
Q:

What is the capital of the country Turkmenistan ?

A) Dushanbe B) Ashgabat
C) Bishkek D) Astana
 
Answer & Explanation Answer: B) Ashgabat

Explanation:
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Filed Under: World Geography
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Q:

Australian state government has approved the world's biggest single tower solar thermal power plant a _______ structure to be built in South Australia by 2020.

A) 150-megawatt B) 200-megawatt
C) 250-megawatt D) 300-megawatt
 
Answer & Explanation Answer: A) 150-megawatt

Explanation:
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Filed Under: General Awareness
Exam Prep: Bank Exams , CAT
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5 5594
Q:

What device converts light energy to electrical energy?

A) Photodiode B) Photovoltaic cell
C) Thermocouple D) Heliostats
 
Answer & Explanation Answer: B) Photovoltaic cell

Explanation:

what_device_converts_light_energy_to_electrical_energy1555397376.png image

 

A device which is used to convert light energy directly into electrical energy is called as photovoltaic cell or a solar cell.

 

Heliostats convert light energy into heat energy.

 

A thermocouple is a device for measuring temperature.

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Filed Under: Physics
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2 5594
Q:

1422 ÷ 1260.25 = ?

A) 586 B) 578
C) 568 D) 566
 
Answer & Explanation Answer: C) 568

Explanation:

142 x 142 x 11260.25

 

=> 142 x 142 x 135.5  = 568

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Filed Under: Simplification
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4 5593
Q:

How can investors receive compounding returns?

A) By investing their earnings back into their original investment B) By diversifying their investment portfolio
C) By selecting a savings account that has a higher interest rate D) By transferring their earnings back into high-risk investment
 
Answer & Explanation Answer: A) By investing their earnings back into their original investment

Explanation:
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Filed Under: Bank Interview
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0 5592