General Maths Puzzle Numerical Ability Age Problem

Q1. In how many ways can you draw a first card and then a second card from a deck of 52 cards?

Q2. In how many ways can you draw two cards from a deck of 52 cards.

Are the answers for Q1 and Q2 the same? Give reasons

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General Other Question

A box contains 20 balls. In how many ways can 8 balls be selected if each ball can be repeated any number of times?
The demand equation for a quantity q of a product at price p in dollars is p=90 - 3q^2.Find the revenue equation R(q) and use it to answer the question below.
What production level will maximize revenue ?

a)23 units b) 35 units c)15 units d) 50 units