Biology Grammar Reading A&P Maths Questions &
Answers | Complete Entrance Prep | Pass Guaranteed -
A+ Graded
SECTION 1: MATHEMATICS (Q1-40)
Subsection 1A: Basic Operations & Fractions (Q1-10)
Q1. What is the sum of 3/8 and 5/12?
A. 8/20
B. 19/24
C. 8/12
D. 1/2
Correct Answer: B
Rationale: To add 3/8 + 5/12, find the least common denominator (24). Convert: 3/8
= 9/24 and 5/12 = 10/24. Sum = 19/24. Distractor A (8/20) adds numerators and
denominators incorrectly. Distractor C (8/12) uses incorrect conversion. Distractor D
(1/2) is a common estimation error. HESI Strategy: Always find the LCD for fraction
addition; never add denominators. Common Error: Students often add numerators
and denominators directly (3+5)/(8+12).
Q2. Simplify: 7/15 ÷ 2/5
A. 14/75
B. 7/6
C. 2/3
D. 14/15
Correct Answer: B
,Rationale: Division of fractions requires multiplying by the reciprocal: 7/15 × 5/2 =
35/30 = 7/6. Distractor A (14/75) results from multiplying instead of dividing.
Distractor C (2/3) inverts the wrong fraction. Distractor D (14/15) adds fractions
incorrectly. HESI Strategy: "Keep, Change, Flip" — keep first fraction, change division
to multiplication, flip the second fraction. Common Error: Multiplying across instead
of using the reciprocal.
Q3. Evaluate using PEMDAS: 18 ÷ 3 + 4 × 2 − 5
A. 9
B. 15
C. 11
D. 7
Correct Answer: A
Rationale: Following PEMDAS: 18 ÷ 3 = 6; 4 × 2 = 8; then 6 + 8 − 5 = 9. Distractor B
(15) results from left-to-right calculation without precedence. Distractor C (11) adds
before multiplying. Distractor D (7) subtracts before adding. HESI Strategy:
Multiplication and division have equal precedence and are solved left to right; same
for addition and subtraction. Common Error: Processing strictly left-to-right
ignoring operation hierarchy.
Q4. Convert 0.625 to a fraction in lowest terms.
A. 625/1000
B. 5/8
C. 6/25
D. 62/100
Correct Answer: B
Rationale: 0.625 = 625/1000. Divide numerator and denominator by 125: 625÷125 =
5, 1000÷125 = 8. Result: 5/8. Distractor A is not reduced. Distractor C misplaces the
,decimal. Distractor D is an incomplete conversion. HESI Strategy: Always reduce
fractions to lowest terms as the final step. Common Error: Stopping at 625/1000
without simplifying.
Q5. What is 45% of 320?
A. 144
B. 180
C. 71
D. 14.4
Correct Answer: A
Rationale: Convert 45% to decimal (0.45) and multiply: 0.45 × 320 = 144. Distractor
B (180) calculates 50% + error. Distractor C (71) divides instead of multiplies.
Distractor D (14.4) has decimal placement error. HESI Strategy: "Of" means multiply;
convert % to decimal by moving decimal two places left. Common Error: Forgetting
to move the decimal when converting percentages.
Q6. Convert the Roman numeral MMCDXLVIII to an Arabic numeral.
A. 2448
B. 2148
C. 2248
D. 2648
Correct Answer: A
Rationale: MM = 2000, CD = 400, XL = 40, VIII = 8. Total: 2000 + 400 + 40 + 8 =
2448. Distractor B subtracts CD incorrectly. Distractor C confuses XL with XC.
Distractor D adds instead of subtracts for subtractive pairs. HESI Strategy:
Remember subtractive pairs: IV (4), IX (9), XL (40), XC (90), CD (400), CM (900).
Common Error: Treating all letters as additive regardless of position.
, Q7. Subtract: 5.003 − 2.678
A. 2.435
B. 3.325
C. 2.325
D. 3.335
Correct Answer: C
Rationale: Align decimals: 5.003 − 2.678. Borrow across zeros: 5.003 becomes 4.993
after borrowing; 4.993 − 2.678 = 2.325. Distractor A has borrowing error. Distractor B
adds instead of subtracts. Distractor D has transposition error. HESI Strategy: Write
decimals vertically with aligned decimal points; fill empty places with zeros. Common
Error: Misaligning decimals or borrowing incorrectly across multiple zeros.
Q8. Multiply: 2.5 × 0.04
A. 0.01
B. 1.0
C. 0.1
D. 10
Correct Answer: C
Rationale: 25 × 4 = 100. Total decimal places: 1 + 2 = 3. Place decimal: 0.100 = 0.1.
Distractor A has decimal placement error (4 places). Distractor B has 2 decimal places.
Distractor D ignores decimals entirely. HESI Strategy: Count total decimal places in
factors; place that many in the product. Common Error: Counting decimal places
incorrectly or omitting leading zeros.
Q9. What is 3/5 expressed as a percentage?
A. 30%
B. 60%