DELHI POLICE MATHS QUIZ-54

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Question 1:

Simplify: $7 \frac{1}{3} \div \frac{2}{3}$ of $2 \frac{1}{5}+1 \frac{3}{8} \div 2 \frac{3}{4}-1 \frac{1}{2}$

Question 2:

A wholesaler sells a heater to a retailer at a profit of $10 \%$ and the retailer sells it to a customer at a profit of $15 \%$. If the customer pays Rs. $15635.4$ then what  is the cost price for the wholesaler? (in Rupees)

Question 3:

What is the compound interest on a sum of ₹ 25,000 after three years at a rate of 12 per cent per annum interest compounded yearly?

Question 4:

A man spends $\frac{1}{6}$ part of his income on house rent, $\frac{1}{3}$ part on the study of his children and $\frac{1}{7}$ part on house expenditure. If the money left with him is Rs. 15000 , then find the income of the man?

Question 5:

By selling 25 pencils, a shopkeeper gains selling price of 5 pencils. Find the gain%.

Question 6:

Amit can do a work in 7 days, Sumit can do the same work in 9 days. Sunil's efficiency is $75 \%$ of the efficiency of Amit and Sumit together. Working together they will complete the work in how many days.

Question 7:

The average age of eleven cricket players is 20 years. If the age of the coach is also included, the average age increases by $10 \%$. The age of the coach is

Question 8:

There are 13 taps connected to a tank. Some are inlets and others are outlets. Each inlet pipe can fill cistern in 12 hours and each outlet pipe can empty the cistern in 15 hours. If all taps are opened together, and emptied tank will be full in 30 hours. Find number of inlet pipes.

Question 9:

Rs 18000 is divided in to two part, such that the simple interest on the first part at $5 \frac{1}{3} \%$ p. a.  for $4 \frac{1}{2}$ years is thrice the SI on the second part at $2 \frac{2}{5} \% \mathrm{~p.a.}$ for 5 years. What is the difference between the two parts? (in Rs.)

Question 10:

When the price of sugar increased by 28%, a family reduced its consumption per month such that the expenditure on sugar was only 12% more than the earlier one. If the family consumed 18.4 kg sugar per month earlier, then what is its new consumption of sugar per month?