DELHI POLICE MATHS QUIZ-41

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Question 1:

HCF of p and q is 12, r and s is 15, t and u is18. What is the HCF of $p, q, r, s, t, u ?$

Question 2:

A policeman goes from his home to police station with his bike at a speed of $50 \mathrm{~km} / \mathrm{h}$, he is late by 30 minute. If he goes at $60 \mathrm{~km} / \mathrm{h}$, he is late by only 5 minute. Find the distance between his house and police station. (in $\mathrm{km}$ )

Question 3:

A vessel contains 24 litres of milk. 4 litres are withdrawn and replaced by water. The process is repeated a second time. Find the ratio of milk to water in the resulting mixture?

Question 4:

Subham divided a certain sum between his three sons in the ratio $3: 4: 5$. Had he divided the sum in the ratio $\frac{1}{3}: \frac{1}{4}: \frac{1}{5}$, the son, who got the least share earlier, would have got Rs. 9999 more. The sum (in Rs.) was:

Question 5:

The simplest value $\frac{3}{4} \div \frac{5}{8} \div \frac{3}{5}$ of $\frac{5}{6}$ of $\frac{7}{10}$ is:

Question 6:

The remainder, when $17^{37}+29^{37}$ is divided by 23 is:

Question 7:

A man buys one table and one chair for Rs.500. He sells the table at a loss of $10 \%$ and the chair at a gain of $10 \%$. He still gains Rs. 10 on the whole. The cost price of the chair is :

Question 8:

Sita deposited Rs. 5,000 at $10 \%$ simple interest for 2 years. How much more money will Sita have in her account at the end of two years, if it is compounded semi-annually.

Question 9:

A tank can be filled by pipe $A$ in 2 hours and pipe $\mathrm{B}$ in 6 hours. At 10 a.m pipe A was opened. At what time will the tank be filled if pipe B is opened at 11 a.m?

Question 10:

If Price of rice increase by $25 \%$, a person can buy 1 kg less rice of Rs. 150 . Find original price of rice?