Question
A jar initially contains a certain quantity of
buttermilk. After removing 8 liters of the mixture and replacing it with cream, this process is repeated twice more, with 10 liters and then 12 liters being taken out and replaced with cream each time. If the initial quantity of buttermilk in the jar is 80 liters, what is the final quantity of buttermilk in the jar?Solution
ATQ, we can say that  Let Quantity of Butter milk from jar A = 3a Quantity of the cream from jar A = 2a Quantity of butter milk from jar B = 5b Quantity of cream from jar B = 6b Now, butter Milk in jar B = 5 × 5 = 25 liters cream in jar B = 6 × 5 = 30 liters (25 + 3a)/(30 + 2a) = 11/10 330 + 22a = 250 + 30a 8a = 80 a = 10 Quantity of jar A = 5 × 10 = 50 liters
If 15 men can complete a work in 24 days, how many days will it take 10 men to complete the same work?
Pawan and Bhanu started a business with their investments in the ratio 5:7. After 6 months, Raju joined the business with an inve...
In how many ways can 4 distinct books be distributed into 2 identical boxes such that no box is empty?
A trader marks the price of a product at ₹800 and allows a discount of 15%. If the trader also pays a tax of 5% on the discounted price, what is the t...
If a person invests ₹50,000 in a scheme offering a compound interest of 5% per annum, calculate the total amount he will have after 3 years. Assume th...
If 75% of income of ‘Akshat’ is equal to 60% of income of ‘Bhaskar’, then find the income of ‘A’ is how much percentage of income of ‘Bhas...
A right square pyramid has a base of side 10 cm and slant height 13 cm.
(a) Find its lateral surface area.
(b) If its vertical height is 1...
A complex number z lies on or within a circle centered at (2, 0) with radius 5 units. What is the maximum value of |z – 2|?
A sum of Rs. 'Y' was invested for 7(1/4) years at simple interest of 8(2/5)% p.a. such that the simple interest received was Rs. 5,115.60. Find the si...
Three boxes B1, B2, B3 contain red and green balls in the ratio 1:1, 3:5, and 5:3 respectively. A box is selected at random and a ball is drawn. What is...