DELSU Mathematics 2021/2022 Past Questions

Practice each question, then open it to see the full details.

After getting a rise of 15%, a man's new monthly salary is N345. How much was his salary before the raise?

A.N330
B.N396.75
C.N300
D.N360

Let f(x) = 2x² + 1, Then f(2.5) is

A.13.50
B.7.25
C.12.60
D.6.26

Simplify 2 5⁄12 - 1 7⁄8 x 6⁄5

A.1/6
B.13/20
C.11/30
D.9/4

In a class of 120 students, 18 of them scored an A grade in mathematics. If the section representing the A grade students on a pie chart has x° at the center of the circle, what is x°?

A.10
B.20
C.30
D.54

Find n if log₂4 + log₂7 - log₂n = 1

A.10
B.14
C.50
D.54

Find the reciprocal of $$\frac{\frac23}{{\frac12} + {\frac13}}$$

A.4/5
B.5/4
C.2/5
D.6/7

The larger value of y for which (y-1)² = 4y - 7 is

A.2
B.4
C.50
D.54