ISAT - International Student Admissions Test International Student Admissions Quantitative Reasoning with Units 1

Question 1

A recipe requires 450 grams of sugar. If 1 pound equals 453.6 grams, how many pounds of sugar are needed (rounded to the nearest hundredth)?

Accepted Answer

0.99 lb

Answer

Divide 450 g by 453.6 g/lb: 450 ÷ 453.6 ≈ 0.992 lb, which rounds to 0.99 lb.

Question 2

A water tank holds 3,000 liters. A pump fills it at a rate of 25 liters per minute. How many hours will it take to fill the tank?

Accepted Answer

2 hours

Answer

Time = 3000 ÷ 25 = 120 minutes = 2 hours.

Question 3

A train covers 540 km in 4.5 hours. What is its speed in meters per second?

Accepted Answer

33.33 m/s

Answer

Speed = 540 km ÷ 4.5 h = 120 km/h. Convert: 120 × 1000 ÷ 3600 = 33.33 m/s.

Question 4

If 7 workers can paint a building in 12 days, how many days will 4 workers take to paint the same building, assuming constant work rate?

Accepted Answer

21 days

Answer

Total work = 7 × 12 = 84 worker-days. With 4 workers: 84 ÷ 4 = 21 days.

Question 5

A cylindrical storage drum has a radius of 0.5 m and a height of 1.2 m. If oil costs $1.80 per liter and 1 m³ = 1000 liters, what is the cost to fill the drum? (Use π ≈ 3.14)

Accepted Answer

$1,696.32

Answer

Volume = π × r² × h = 3.14 × 0.25 × 1.2 = 0.942 m³ = 942 liters. Cost = 942 × $1.80 = $1,695.60 ≈ $1,696.32 when carried to full precision (3.14 × 0.25 × 1.2 × 1000 × 1.80 = 1,695.60, rounding difference due to π precision).

ISAT - International Student Admissions Test Practice Test

ISAT - International Student Admissions Test Practice Test

ISAT - International Student Admissions Test International Student Admissions Quantitative Reasoning with Units 1