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Question 1:

Find the ratio between the fourth proportional of 2,4,6 and the third proportional of 4,8 .

Question 2:

If A is one third of B, B is twice of C, D is two-third of A and the average of A, B, C and D is 74 , then the difference between A and C is:

Question 3:

The average age of 26 students in a class is 15 years. If the teacher's age is included in it, then the average will increase by one. What is the teacher's age (in years)?

Question 4:

If a sum of ₹ 6225 is divided into three parts such that 4 times the first part is equal to 5 times the second part and 7 times the third part. The difference between the first and second part (in ₹) is:

Question 5:

An alloy contains 40% of silver, 30% of copper and 30% of nickel. How much silver (in kg) should be added to 30 kg of the alloy so that the new alloy contains 50% of silver?

Question 6:

The ratio of the speed of two trains is 3 : 8. If the first train travels 300 km in 5 hours, then what is the sum of the speeds (in km/h) of both the trains?

Question 7:

The cost prices of two articles A and B are in the ratio 3 : 5. While selling these articles, the shopkeeper gains 20% on article A and 10% on article B and the difference in their selling prices is ₹ 760 . The difference in the cost price (in ₹) of articles B and A is

Question 8:

If a nine-digit number $789 x 6378 y$ is divisible by 72 , then the value of $x + y$ is:

Question 9:

A dealer professes to sell his goods at cost price, but uses 900 gm weight for a kilogram. Find his profit per cent.

Question 10:

An amount of ₹ 18000 is lent partly at $7 \%$ and the remaining amount at $9 \%$ per annum. If the average annual interest is $8.5 \%$ then the amount (in ₹) lent at $9 \%$ is: