If 50% of (x + 2y) = 40% of (x + 5y), then what percentage of x is y?

In a class of 40 students, the average marks scored by 10 students is 22, whereas the average marks scored by the remaining students is 62. The average marks scored by all the students of the class, is:

What is the smallest number which leaves no remainder when divided by numbers 1, 2, 3, ……, 9?

Profit earned by selling an item for Rs.2650 is 20% more than the loss incurred by selling the same item for Rs.2375. At what price should the item be sold to earn 20% profit?

A and B invested in a business in the ratio 3 : 2. If 5% of the total profit goes to charity and the share of B in the remaining profit is Rs.1425, then the total profit is

If K = 5 + 2√6, then (K - 1)/√K is equal to

A retailer bought shirts at the rate of Rs.200 per shirt and marked them at Rs.300 each. He allowed some discount and earned a profit of 35% on the cost price. What is the percentage of discount?

A shopkeeper bought 25 chairs from a manufacturer for Rs.37,500 and sold them at a profit equal to selling price of 5 chairs. The selling price of one chair, is:

If 13¹⁰⁰ is divided by 14, the remainder is: