ATQ, Cost price of the article for 'B' = 125% of Y = Rs. '1.25Y' So, marked price of the article = 125% of 1.25Y = (1.25) X (1.25Y) = Rs. '1.5625Y' And selling price of the article = (0.9) X (1.5625Y) = Rs. '1.40625Y' So, 1.40625Y = 8,100 Or, Y = (8100/1.40625) = 5,760 So, required value = 5,760 - 4,000 = 1,760
The average of 14, 57, and z is 40. What is the value of z?
The average age of A, B, and C is 20 years. 3 years ago, the sum of the ages of A and B was 7 more than that of C. Find the present age of C.
If the average of two numbers is 20 and the square root of their product is 16, then the difference between the numbers is:
The average of five even numbers is 36. If we replace two of these even numbers, 82 and 88, with a single even number X, the new average decreases by 4....
The certain sum amounts to Rs11313.5 in 2(1/2) years at 12% p.a., interest compounded 10 months. The sum (in Rs) is:
The average age of a class of 24 girls is 15 years. If 6 new girls having average age of 10 years join the class, then the average age of the class beco...
The average of three numbers is 21. The first number is double the second, and the third number is double the first. Calculate the sum of the first and...
Average weight of 13 nurses is 45 kg. If the weight of one more nurse is included, then average weight is increased by 1 kg. Find the weight of the newl...
The average of twelve numbers is 45.5. The average of the first four numbers is 41.5 and that of the next five numbers is 48. The 10th number...
The average age of 32 children and their teacher's age are 28 years. If the teacher's age is excluded, the average reduces by 1. What is the teacher's age?
