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“Quantitative Frequently Asked Questions in various Quantitative Interviews asked by the interviewer. So learn Quantitative with the help of this Quantitative Interview questions and answers guide and feel free to comment as your suggestions, questions and answers on any Quantitative Interview Question or answer by the comment feature available on the page.”



31 Quantitative Questions And Answers

4⟩ Perimeter of the back wheel = 9 feet, front wheel = 7 feet on a certain distance, the front wheel gets 10 revolutions more than the back wheel. What is the distance?

315 feet..

since front wheel takes 10 more revolutions so it travels 70 feet in those extra number of revolutions.

But distance travelled by front wheel is less by 2 feet as compared to rear wheel for each revolution. So this loss of 2 feet is covered by those extra revolutions taken by the front wheel.

So a deficit of 70 feet would have been created by 70/2=35 revolutions.

So rear wheel travels 35 revolution (and front wheel takes 35+10=45 Revs.) So distance is 35*9 (or 45*7) = 315 feet

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9⟩ A contractor agreeing to finish a work in 150 days, employed 75 men each working 8 hours daily. After 90 days, only 2/7 of the work was completed. Increasing the number of men by ________ each working now for 10 hours daily, the work can be completed in time?

150 men.Explanation:One day?s work = 2 / (7 * 90)One hour?s work = 2 / (7 * 90 * 8)One man?s work = 2 / (7 * 90 * 8 * 75)The remaining work (5/7) has to be completed within 60 days, because thetotal number of days allotted for the project is 150 days.So we get the equation(2 * 10 * x * 60) / (7 * 90 * 8 * 75) = 5/7 where x is the number of menworking after the 90th day.We get x = 225Since we have 75 men already, it is enough to add only 150 men..

90*75*8 = 2/7(work)

now 5/7 th of work left..

so 60*(75+x)*10 =5/7(work)

x=no of workers..

devide the two equations..

x=150

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10⟩ Five boys were climbing a hill. J was following H. R was just ahead of G. K was between G & H. They were climbing up in a column. Who was the second?

G.Explanation:The order in which they are climbing is R - G - K - H - J.

Another order is also possible: (top)H-J-K-R-G (bottom). And another possibility is: (top)H-K-J-R-G(bottom). "K was between G&H" doesn't mean "only K was between G&H". Finally, there is no way to tell for sure if G,J or K was the second.

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11⟩ If on an item a company gives 25% discount, they earn 25% profit. If they now give 10% discount then what is the profit percentage?

30%.

The Profit shall be 50%.

Consider the item price as Rs.10.

After 25% discount, the cost would be Rs 7.5

Company would be profiting 25% on original price. Hence original price is Rs 6. (25% of 6 is 1.5. So 1.5+6=7.5)

Now if discount is 10% , the cost of item would be Rs.9. Hence 50% profit (as Rs 9 is 1.5 times of 6)

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16⟩ A dishonest shopkeeper professes to sell pulses at the cost price, but he uses a false weight of 950gm. for a kg. His gain is____%.

5.3 %Explanation:He sells 950 grams of pulses and gains 50 grams.If he sells 100 grams of pulses then he will gain (50 / 950) *100 = 5.26.

5% [Explanation: He sells 950 grams of pulses and gains 50 grams. He is getting 50 grams of pulse on 1000 grams. I.e. 5 % (50 / 1000 = 5/100)]

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