UP POLICE MATHS QUIZ-43

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Question 1:

Which of the following number is not completely divisible by $87 .$

Question 2:

Seven years ago, the ratio of the ages of A and B was 5: 4. Eight years hence, the ratio of the ages of A and B will be 10 : 9. What is the sum of their present ages?

Question 3:

Babita salary was decreased by $40 \%$ and subsequently increased by $40 \%$. How much percent does change in her salary?

Question 4:

The effective rate of interest, which corresponds to the nominal rate of 6% p.a., paid half-yearly, will be:

Question 5:

An aeroplane covers a certain distance at a speed of $250 \mathrm{~km} / \mathrm{h}$ in 4 hours. To cover the same distance in 1 hour and 40 minutes, what should be its speed?

Question 6:

12 people can make 16 pairs of pajamas in 20 days when they work 6 hours in a day. In how many days 15 people can make 24 pairs of pajamas if they work 8 hours in a day?

Question 7:

Vishal bought an air conditioner for Rs 12000 and spent Rs 2000 on its repair. He sold it for Rs 12800. What is his loss percentage?

Question 8:

Two pipes $\mathrm{P}$ and $\mathrm{Q}$ are inlet and outlet pipes respectively where Pipe P can fill the tank in 8 hours and Pipe $Q$ can empty the full tank in 5 hours. If $\frac{3}{4}$ th part of the tank are already filled by water and both pipes are opened together then find in how many hours tank will empty?

Question 9:

The value of refrigerator depreciates by 20% every year. If the present value of refrigerator is Rs.20,000. Find the value of refrigerator after 2 years?

Question 10:

A gives a certain amount to B on the compound interest for 3 years at the rate of 5% p.a. If the difference between compound interest and simple interest is 2745 then find the simple interest for the third year.