DELHI POLICE QUANT QUIZ-9

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Question 1:

Savita decides to donate 8% of her monthly income to a charitable trust. On the day of charity she changes her decision and donates an amount of ₹ 2,880 which is 20% less than the amount already earmarked for charity. What is his monthly income (in ₹)?

Question 2:

The price of an article is marked 20% above its cost price. If the shopkeeper makes a profit of 8% even after giving discount x%, then find the value of x.

Question 3:

The average of 51 numbers is 52. The average of the first 28 numbers is 50.5 and the average of the last 24 numbers is 54.5. If 28th number is dropped, then what will be the average of the remaining numbers?

Question 4:

A sum of ₹ 8,000 amounts to ₹ 13,824 in 3 years at R% p.a., interest compounded annually. What will it amount to in 114 years at the same rate, if the interest is compounded half-yearly?

Question 5:

P started a business with Rs. 80000 and after some months Q joined with Rs. 60000 . If the profit at the end of the year was divided in the ratio 2:1, then after how many months did Q joined the business?

Question 6:

If in 3 years a sum of ₹ 1,900 becomes ₹ 2,100 at a certain rate of simple interest, then in 5 years at the same rate of interest ₹ 11,400 will become?

Question 7:

A and B can do a piece of work in 12 days and 20 days respectively. They both work together for 6 days. The remaining work is completed by C alone in 12 days. In how many days will A and C together complete the 23 part of the work?

Question 8:

What least number should be subtracted from 2983 so that the resulting number when divided by 9,10 and 15 , the remainder in each case is 3 ?

Question 9:

A hollow iron pipe is 14 cm long and its outer diameter is 6 cm. If the thickness of the pipe is 1 cm and the weight of iron is 8 g/cm3, then the weight of the pipe ( in Kg) how much? Use (π=227 )

Question 10:

The value of 78÷423 of 114114×115+(0.53÷0.58)×234 is: