UP POLICE MATHS QUIZ-40

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Question 1:

A sum of Rs 4800 becomes Rs 5,300 in a certain time period at a certain rate of interest. If the rate of interest is reduced by 15% and the time period is tripled, what will be the new amount?

Question 2:

The HCF and LCM of two numbers are 24 and 240 respectively, if first number is 48 then find the second number.

Question 3:

In $\triangle \mathrm{ABC}$, if the ratio of angles is in the proportion of 7:5:8, then the difference between the biggest and smallest angle (in degrees) is:

Question 4:

The area of a rectangle is 240 m2 and the perimeter is 46 m. What is the measure of the tallest pole to be placed in that area?

Question 5:

If Radha saves $25 \%$ of her income, if expenditure increases by $20 \%$ and income increases by $29 \%$, then find percentage increase in savings.

Question 6:

The ratio of $A$ and $B$ is $4: 5$ and the ratio of $\mathrm{C}$ and $\mathrm{B}$ is $3: 5$. Then find $\mathrm{A}^{2}: \mathrm{B}^{2}:$ 3AC.

Question 7:

Rahul lent a loan to Ramesh at a certain rate of interest, after 2 years the amount was repaid by Ramesh, calculated by Rahul that the simple interest for two years was Rs.300 and the compound interest was Rs.350. Find the amount lent by Rahul on loan to Ramesh?

Question 8:

What is the least number which when divided by 12,20 and 24 leaves in each case a remainder of $8 ?$

Question 9:

Two pipes P and Q can fill a tank with water in 10 minutes and 12 minutes respectively. The third pipe S can empty the tank in 15 minutes First P and S are opened After 20 minutes Q is opened Total time (in minutes) in which the tank will be filled up is:

Question 10:

After applying two successive discounts of $20 \%$ and $10 \%$ an article was sold for Rs. 954 . Find the marked price of the article.