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Q:

Study the following histogram of marks in mathematics (out of 50) of students in a class and answer the following questions.

If the pass marks in maths is 31, the number of students who failed in maths is

A) 10 B) 15
C) 20 D) 25
 
Answer & Explanation Answer: B) 15

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Filed Under: Line Charts
Exam Prep: Bank Exams

Q:

If the difference between the compound interest and the simple interest on a certain sum at the rate of 5% per annum for 2 years is Rs. 20, then the sum is

A) Rs. 2000 B) Rs. 4000
C) Rs. 6000 D) Rs. 8000
 
Answer & Explanation Answer: D) Rs. 8000

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Filed Under: Compound Interest
Exam Prep: Bank Exams , CAT

Q:

Two persons are on either side of a temple, 75 m high, observe the angle of elevation of the top of the temple to be 30 and 60 deg respectively. The distance between the persons is

A) 173.2m B) 100m
C) 157.7m D) 273.2m
 
Answer & Explanation Answer: A) 173.2m

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Filed Under: Height and Distance
Exam Prep: Bank Exams

Q:

If 2x+4-2x+2=3, then the value of x?

A) 0 B) 2
C) -1 D) -2
 
Answer & Explanation Answer: D) -2

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Filed Under: Simplification
Exam Prep: Bank Exams

Q:

If sinθ+cosecθ=2, the value of sinnθ+cosecnθ is

A) 2 B) 0
C) 1 D) 1/n
 
Answer & Explanation Answer: A) 2

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Filed Under: Simplification
Exam Prep: Bank Exams

Q:

If  x = a + 1/a, y = a - 1/a, then the value of x4+y4-2x2y2

A) 4 B) 8
C) 16 D) 64
 
Answer & Explanation Answer: C) 16

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Filed Under: Simplification
Exam Prep: Bank Exams

Q:

The average age of a class of 39 students is 15 years. If the age of the teacher is included, then the average increases by 3 months. Find the age of the teacher.

A) 30 B) 25
C) 35 D) 40
 
Answer & Explanation Answer: B) 25

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Filed Under: Problems on Ages
Exam Prep: Bank Exams

Q:

The average age of a class of 39 students is 15 years. If the age of the teacher is included, then the average increases by 3 months. Find the age of the teacher.

A) 30 B) 25
C) 35 D) 40
 
Answer & Explanation Answer: B) 25

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Filed Under: Problems on Ages
Exam Prep: Bank Exams