Exams


Q:

S, T and U together can complete a work in 30 days. If the ratio of efficiency of S, T and U is 20 : 15 : 12 respectively, then in how many days U alone can complete the same work?

A) 195/2 B) 235/2
C) 225/2 D) 215/2
 
Answer & Explanation Answer: B) 235/2

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Filed Under: Time and Work
Exam Prep: Bank Exams

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Q:

Menstruation is triggered by a drop in the levels of

A) progesterone B) relaxin
C) FSH D) LH
 
Answer & Explanation Answer: A) progesterone

Explanation:

The principal hormone secreted by the corpus luteum is progesterone. Menstruation is triggered by a drop in the levels of progesterone.

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Filed Under: Biology
Exam Prep: AIEEE
Job Role: Analyst

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Q:

The ratio of number of cans of orange, pineapple and mixed fruit juices kept in a store is 8 : 9 : 15. If the store sells 25%, 33.33% and 20% of orange, pineapple and mixed fruit juices cans respectively, then what is the ratio of number of cans of these juices in the remaining stock?

A) 1 : 1 : 2 B) 6 : 6 : 13
C) 12 : 15 : 19 D) 4 : 9 : 13
 
Answer & Explanation Answer: A) 1 : 1 : 2

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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

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Q:

Select the related letters from the given alternatives.

HIJ : OPQ :: STU : ?

A) BCD B) ZAB
C) XYZ D) CBA
 
Answer & Explanation Answer: B) ZAB

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Q:

The term "Birdie" is related to which game?

A) Golf B) Baseball
C) Basketball D) Polo
 
Answer & Explanation Answer: A) Golf

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Filed Under: Sports
Exam Prep: Bank Exams

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Q:

If price of oranges is increased by 30%, then a person can buy 12 oranges less for Rs 208. What is the original price (in Rs) of an orange?

A) 2 B) 4
C) 8 D) 3
 
Answer & Explanation Answer: B) 4

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

Travelling at 4/5th of his usual speed, a man is 15 minutes late. What is his usual time to cover the same distance?

A) 15 min B) 1 hr
C) 75 min D) 45 min
 
Answer & Explanation Answer: B) 1 hr

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Filed Under: Time and Distance
Exam Prep: Bank Exams

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Q:

A uniformly moving train of length 480 m takes 3 minutes to completely cross a platform. If the same train, with the same speed crosses a pole completely in 30 sec, then the length of the platform is -

A) 1 km B) 600 m
C) 4.8 km D) 1.2 km
 
Answer & Explanation Answer:

Explanation:

Let length of platform be ‘y’metres.

Then, at the platform,Distance travelled = y + (length of train) = (y + 480)m

Then, Speed of train = (y + 480)m / (3x60) sec = (y+480)/180 ...(1)

Also, at the pole,Distance travelled = length of train = 480m

Then, Speed of train = 480m / 30sec = 16 m/s ...(2)

Equating eq.(1) & eq.(2), we get,

(y+480)/180 = 16(y+480) = 16 x 180 = 2880

y = 2880 –480 = 2400m or 2.4 km long platform.

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Filed Under: Problems on Trains
Exam Prep: Bank Exams
Job Role: Bank PO , Bank Clerk

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