RRB Government Jobs Exams

A population of 1500 deer decreases by 1.5% per year. At the end of 10 years, there will be approximately 1290 deer in the population. Which function can be used to determine the number of deer, y, in this population at the end of t years?
A y t = - 1500 1 0 015 ( . )
B y = 1500(0.015)t
C y = 1500(1 + 0.015)t
D y = 1500(1.5

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RRB Other Question

The sum of the perimeters of two different squares is 32 centimeters, and the difference between their perimeters is 8 centimeters. If x represents the side length of the larger square and y represents the side length of the smaller square, which of the following systems of equations could be used to find the dimensions of the squares?
a) x + y + 32, x - y + 8
b) 4x + 4y + 32, 4x - 4y + 8
c) 2x + 2y + 32, 2y - 2x + 8
d) 4x + 2y + 32, 4x - 2y + 8 If f(x) = 3x^3 - 7x + 5, then f(-1)