A and B each have a certain number of mangoes. A says to B, “if you give 30 of your mangoes, I will have twice as many as left with you.” B replies, “if you give me 10, I will have thrice as many as left with you.” How many mangoes does each have?

A and B each have certain number of oranges. A says to B , if you give me 10 of your oranges, I will have twice the number of oranges left with you. B replies, if you give me 10 of your oranges, I will have the same number of oranges as left with you. Find the number of oranges with A and B separately.

A and B each has some money. If A gives Rs 30 to B , then B will have twice the money left with A . But, if B gives Rs 10 to A , then A will have thrice as much as is left with B . How much money does each have?

A and B both have some pencils. If A gives 10 pencils to B, then B will have twice as many as A. And if B gives 10 pencils to A, then they will have the same number of pencils. How many pencils does each have?

One says, “Give me a hundred, friend! I shall then become twice as rich as you.” The other replies, “If you give me ten, I shall be six times as rich as you.” Tell me what is the amount of their respective capital?

If you have taken scion of desi mango and stock of dasheri mango, what type of mango will be born ?

Andy has twice as many marbles as Pandy, and Sandy has half as many has Andy and Pandy put together. If Andy has 75 marbles more than Sandy. How many does each of them have?

Lithium crystallizes in a body centred cubic lattice. How many next-nearest neighbours does each Li have?

Mrs. Sharma has 24 apples. She uses 1/4 of them. How many apples does she use? How many does she have left?

A person bought a certain number of pens for 800. If he had bought 4 pens more for the same money, he would have paid 10 less for each pen. How many pens did he buy?

If there are 50 mangoes in a box, how will you write the total number of mangoes in terms of the number of boxes? (Use b for the number of boxes.)