Simple formula and their use factors, H.C.F., L.C.M. by factors, fractions, simple equations

The LCM of two numbers is 2079 and their HCF is 27. If the first number is 189, the second number is

If x - 1 is a factor of 4x³ + 3x² - 4x + k, then the value of k is

The least number, which when divided by 12, 16, 24 and 36 leaves a remainder of 3, is

A fraction is such that when 3/4 is added to it, we get 1/3. What is the fraction?

What is the H.C.F. of $2x^2 - 3x - 9$ and $2x^3 - 54$?

If f₁ = 6x²y and f₂ = 15 xy², then which of the following option is true ?

Neha's father's age is 5 years more than three times Neha's age. Neha's father is 44 years old, then Neha's age will be :

The LCM of two prime numbers a and b (a>b) is 391, then 3b – 2a is divisible by

Factors of the polynomial $2x^3 + x^2 - 7x - 6$ are:

From today, after five years the age of father will be three times of the age of the son, while five years ago father’s age was seven times of the age of his son. Then the present ages of father and son, in years are respectively: