Free Practice Questions for Competitive Exams, Interviews, Certifications

Q:

What Frank Whittle invented?

A) Radar	B) Ethyl gasoline
C) Sonar	D) Jet propulsion

Answer & Explanation Answer: D) Jet propulsion

Explanation:

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Filed Under: Inventions

6 4480

Q:

Which is the strongest force in the universe?

Answer

Nuclear Force

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Subject: Physics

6 2010

Q:

A body given with an initial velocity moved under the effect of gravity is called?

Answer

Projectile

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Subject: Physics

6 2320

Q:

If a+b+c =21 what is the total number of positive integral solutions?

A) 109	B) 190
C) 901	D) 910

Answer & Explanation Answer: B) 190

Explanation:

Number of positive integral solutions = $n - 1_{C_{r - 1}}$ = ${}^{20}C_{2}$ = 190

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Filed Under: Permutations and Combinations
Exam Prep: CAT , Bank Exams , AIEEE
Job Role: Bank PO , Bank Clerk

6 8603

Q:

What was the name of the atom bomb dropped by USA on Hiroshima in Japan during the second world war ?

A) Little Boy	B) Little Fly
C) Little Devil	D) None of these

Answer & Explanation Answer: A) Little Boy

Explanation:

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Filed Under: World History

6 5308

Q:

One year ago the ratio between Mohan and Ashok's age was 4:3 after one yerar the rato of their ages will be 5:4 . what is the sunm of their present ages in years.

Answer

Let their ages one year ago be 4x and 3x years

$\Rightarrow \frac{4x+2}{3x+2}=\frac{5}{4}\Rightarrow 4(4x+2)=5(3x+2)$

$\Rightarrow x=2$

$\therefore$ Sum of their present ages =(4x +1+3x+1) = 16 years.

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Subject: Problems on Ages

6 5439

Q:

Subbu purchased a tape recorder at 9/10 of its selling price and sold it at 8% more than its selling price. His gain is

Answer

Let S.P = x then C.P = $\inline \frac{9x}{10}$

Selling price received by subbu = (108% of x)

= $\inline \frac{108}{100}x=\frac{27}{25}x$

Gain= $\inline (\frac{27}{25}x-\frac{9}{10}x)=\frac{9}{50}x$

Hence gain% = $\inline (\frac{9x}{50}\times \frac{10}{9x}\times 100)$ = 20%

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Subject: Percentage

6 6277

Q:

Which of the following states High Court has recently restored the power of the RBI to decide the period after which the bad loan can be called as a non-performing asset(NPA)?

A) Tamil Nadu	B) Maharashtra
C) Gujarat	D) Rajasthan

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