UP SI MATHS QUIZ-51

Attempt now to get your rank among 110 students!

Question 1:

A cone of same height and same base is taken out from a solid cylinder of height 9 $\mathrm{cm}$ and base of radius $7 / 2 \mathrm{~cm}$. Accordingly, what is the volume of the remaining solid? (in cube $\mathrm{cm}$.)

Question 2:

When a number is divided by 136 gives remainder 36 if the same number is divided by 17 . Find the remainder.

Question 3:

The population of a town increased by $20 \%$ during the first year, by $25 \%$ during the next year and by $44 \%$ during the third year. Find the average rate of increase during 3 years.

Question 4:

Certain sum amount to Rs. 2,960 in 4 years at $12 \%$ per anuum rate of interest. If rate of interest reduces by $25 \%$, in how many years same sum would be Rs. 4,000 ?

Question 5:

Aman sells 2 items for Rs. 360 each and gains $20 \%$ profit on both. He calculates profit on selling price for the first article and on cost price for the second article. Find his actual profit percent.

Question 6:

If the price of an article is decreased by $12 \%$ and his amount is also decreased by Rs. 108 . Find new price of article?

Question 7:

Find the number of bricks, each measuring $24 \mathrm{~cm} \times 12 \mathrm{~cm} \times 8 \mathrm{~cm}$, required to construct a wall $24 \mathrm{~m}$ long, $8 \mathrm{~m}$ high and $60 \mathrm{~cm}$ thick if $10 \%$ of the wall is filled with mortar?

Question 8:

The average marks of 40 students was found to be 68 If the marks of two students were incorrectly entered as 48 and 64 instead of 84 and 46 respectively, then what is the correct average?

Question 9:

The Sum of ages of $\mathrm{A}, \mathrm{B}$ and $\mathrm{C}$, 3 years ago was 78 years. After 9 years ratio will be $3: 7 : 9$. Find present age of youngest person.

Question 10:

A ship sails $30 \mathrm{~km}$ of a river towards upstream in 6 hours. How long will it take to cover the same distance downstream, If the speed of current is $\left(\frac{1}{4}\right)^{\text {th }}$ of the speed of the ship in still water?