DSSSB PRT MATHS QUIZ-7

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Question 1:

A invests some amount of money in a business in the beginning of a year and after 6 months B joins the business with some amount of money while A withdraws his invested money, at the end of the year they earn Rs. 64000 . If the ratio of their investment is $3: 2$, then find the profit of B.

Question 2:

A shopkeeper gives 1 item free with every 15 items. At the time of billing he gives $4 \%$ discount to encourage electronic payment and still he gains $35 \%$. Find the ratio of CP to MP.

Question 3:

A Man sells a table at 12% loss and a chair at 19% profit as a result of which he gains Rs 160 on the overall. Had he sold the table at 12% profit and the chair at 16% loss, then he would have lost Rs 40. What is the cost price of a chair?

Question 4:

The mean of $4^{30}, 4^{60}, 4^{90}$, $4^{99}$ is

Question 5:

The total surface area of a solid cubical box is $726 \mathrm{~m}^{2} .$ It is melted and recast into a circular cylinder of height $14 \mathrm{~m} .$ What is the radius of the cylinder?

Question 6:

Rahul has to reach a certain place at a certain time. He finds that he will be $13 \mathrm{~min}$ late if he walks at $9 \mathrm{~km} / \mathrm{hr}$ and $17 \mathrm{~min}$ earlier if he at walks $13 \mathrm{~km} / \mathrm{hr}$. Find the distance he has to cover?

Question 7:

A certain number of men can do a work in 35 days. If there were 9 men less it could be finished in 9 days more. Find the number of man ?

Question 8:

In prepaid card of same price, company A gives $19 \%$ less talk time than company B. On post paid card of same price company A and B respectively gives $11 \frac{1}{9} \%$ and $10 \%$ less talk time respectively than their prepaid card. Find how much $\%$ less talk time will be given by A than B on post paid card?

Question 9:

How much quantity of water must be added to $48 \mathrm{ml}$ of alcohol to make a solution that contains $25 \%$ alcohol?

Question 10:

The proportion of milk and water in 3 samples is 2: 1,3:2 and 5: 3. A mixture comprising of equal quantities of all 3 samples is made. The proportion of milk and water in the mixture is.