Hi Friends, have some questions need solved A function f(x) is said to be an eve
ID: 2986055 • Letter: H
Question
Hi Friends, have some questions need solved
A function f(x) is said to be an even function if f(-x)= %u2013 f(x) and odd if f(-x) = f(x). Using the above definition, find out for what value of a is : f(x) = (a-2)x + 3a %u2013 4 an even function?
A test contains 8 questions. A student must answer at least two of the first five questions and at least one of the remaining three questions. In how many ways can he answer the test, if he must answer five questions in all?
A scenery costs Rs. R1. A shopkeeper gives a discount of x % and reduces its price to R2. He gives a further discount of x % on the reduced price R2 to reduce it further to R3, which reduces it by Rs. 415. A customer bargains with him and takes an x % discount on R3 and buys the scenery for Rs. 3362.80. Find the original price R1 of the scenery.
Explanation / Answer
Answers
1) 2
2)55
3) Rs. 4613