exam
Maths Puzzle
Numerical Ability
if 5^21*4^11=2*10^n what is value of n
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exam Other Question
If a sporting goods store buys golf balls for $.75 and sells them for $2.25, its gross profit as a percent of cost is
a. 3%.
b. 20%.
c. 33 1/3%
d. n
The degree three polynomial f(x) with real coefficients and leading coefficient 1, has 4 and 3+i among its roots. Express f(x) as a product of linear and quadratic polynomials with real coefficients.