Quantitative Aptitude - Arithmetic Ability Questions

Q:

ΔABC is right angled at B. If m∠A = 45°, then find the value of (cosecC + 1/√3).

A) (3√2+1)/3 B) (2+√3)/2
C) 5/√3 D) (√6+1)/√3
 
Answer & Explanation Answer: D) (√6+1)/√3

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Q:

Akarsh's birthday is on Saturday 29th July. On what day of the week will be Ojas's Birthday in the same year if Ojas was born on 12th August?

A) Wednesday B) Friday
C) Saturday D) Sunday
 
Answer & Explanation Answer: C) Saturday

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Q:

In a class of 50 students there are 22 girls who scored an average of 35 marks in the test. What is the average marks of the boys if the class average is 42 marks?

A) 50 B) 52.5
C) 47.5 D) 55
 
Answer & Explanation Answer: C) 47.5

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Q:

To travel 612 km, an Express train takes 9 hours more than Rajdhani. If the speed of the Express train is doubled, it takes 3 hours less than Rajdhani. The speed (in km/hr) of Rajdhani is

A) 40.8 B) 51
C) 30.6 D) 61.2
 
Answer & Explanation Answer: A) 40.8

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Filed Under: Time and Distance
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Q:

Akshar remembers that the match is after 26th April but before 30th April, while Suresh remembers that the match is after 22nd April but before 28th April. On which date of April is the match?

A) 29 B) 26
C) 27 D) 28
 
Answer & Explanation Answer: C) 27

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Q:

The ratio of the sum of the salaries of A and B to the difference of their salaries is 11:1 and the ratio of the sum of the salaries of B and C to the difference of their salaries is also 11:1. If A's salary is the highest and C's is the lowest then what is B's salary (in Rs) given the total of all their salaries is Rs 1,82,000?

A) 72000 B) 60000
C) 50000 D) 86400
 
Answer & Explanation Answer: B) 60000

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Filed Under: Ratios and Proportions
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Q:

What is the value of [12/(√5 + √3)] + [18/(√5 – √3)]?

A) 15(√5 – √3) B) 3(5√5 + √3)
C) 15(√5 + √3) D) 3(3√5 + √3
 
Answer & Explanation Answer: B) 3(5√5 + √3)

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Q:

A does 80% of a work in 20 days. He then calls in B and they together finish the remaining work in 3 days. How long B alone would take to do the whole work?

A) 75 days B) 37.5 days
C) 17.5 days D) 35 days
 
Answer & Explanation Answer: B) 37.5 days

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Filed Under: Time and Work
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