Exams Questions and Answers

Q:

Sanjeev ranks seventh from the top and twenty eighth from the bottom in a class. How many students are there in the class?

A) 33	B) 36
C) 35	D) 34

Answer & Explanation Answer: D) 34

Explanation:

Total number of students in the class = 28 + 6 i.e, from top(7-1)

28 + 6 = 34

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Filed Under: Number, Ranking and Time Sequence Test
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Bank Clerk , Bank PO

64 16247

Q:

Read the following question and decide which of the given statements is/are sufficient.

If X is a natural number, is X+6 odd?

Statements :

1. X - 15 is a whole number.

2. X - 6 is an odd number.

A) 2 alone is sufficient while 1 alone is not sufficient to answer the question	B) Both 1 and 2 together are sufficient to answer the question
C) Either 1 or 2 is sufficient to answer the question	D) 1 alone is sufficient while 2 alone is not sufficient to answer the question

Answer & Explanation Answer: A) 2 alone is sufficient while 1 alone is not sufficient to answer the question

Explanation:

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Filed Under: Problems on Numbers
Exam Prep: Bank Exams

0 16246

Q:

Find at what time between 9 and 10 o’clock will the hands of a clock be in 180° ?

A) 180/14 min past 10	B) 180/11 min past 9
C) 148/7 min past 10	D) 154/11 min past 9

Answer & Explanation Answer: B) 180/11 min past 9

Explanation:

At 9 o’clock, the hour hand is at 9 and the minutes hand is at 12, i.e., the two hands are 15 min. spaces apart.
So, the minute hand should gain = (30 - 15) minutes = 15 minutes
55 minutes will be gained in 60 min.
15 minutes spaces will be gained in ((60/55) x 15) min. = 180/11 min.
The hands will be in the same straight line but not together i.e.,in 180 degrees at 180/11 min. past 9.

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Filed Under: Clock puzzles
Exam Prep: Bank Exams , CAT , GATE , GRE
Job Role: Bank Clerk , Bank PO

73 16235

Q:

217 x 217 + 183 x 183 = ?

A) 84521	B) 87487
C) 80578	D) 78458

Answer & Explanation Answer: C) 80578

Explanation:

${(217)}^{2} + {(183)}^{2}$

= ${(200 + 17)}^{2} + {(200 - 17)}^{2}$

It is in the form of ${(a + b)}^{2} + {(a - b)}^{2} = 2 (a^{2} + b^{2})$

= 2(40000 + 289) = 80578.

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Filed Under: Simplification
Exam Prep: GATE , CAT , Bank Exams , AIEEE
Job Role: Bank PO , Bank Clerk

22 16226

Q:

The Ozone Layer restricts from

A) Infrared Rays	B) Radio waves
C) Ultraviolet Radiation	D) X-Rays and Gamma Rays

Answer & Explanation Answer: C) Ultraviolet Radiation

Explanation:

The Ozone layer which is present in the Earth's atmosphere protects it by restricting from UV or Ultraviolet radiation, the dangerous rays contained by Sun.

the_ozone_layer_restricts_us_from1542267550.jpg image

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Filed Under: General Science
Exam Prep: Bank Exams , AIEEE
Job Role: Bank PO , Bank Clerk , Analyst , Database Administration

51 16223

Q:

Two boys starting from the same place walk at a rate of 5kmph and 5.5kmph respectively. What time will they take to be 8.5km apart, if they walk in the same direction?

A) 15 hours	B) 16 hours
C) 17 hours	D) 18 hours

Answer & Explanation Answer: C) 17 hours

Explanation:

In this type of questions we need to get the relative speed between them,
The relative speed of the boys = 5.5kmph – 5kmph
= 0.5 kmph

Distance between them is 8.5 km
Time = Distance/Speed
Time= 8.5km / 0.5 kmph = 17 hrs

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Filed Under: Time and Distance
Exam Prep: GRE

15 16219

Q:

The following table shows the number of children in each house of a society.