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Difficulty: All Easy Medium Hard 1–10 of 61
Topics in Aptitude & Maths
Q.1 Easy HCF and LCM 14 Apr 2026
Two trains traveling at 45 km/h and 55 km/h are moving towards each other on parallel tracks. If they are 400 km apart, in how many hours will they meet?
A3 hours
B4 hours
C5 hours
D6 hours
Correct Answer:  B. 4 hours
EXPLANATION

Relative speed = 45 + 55 = 100 km/h. Time = Distance/Speed = 400/100 = 4 hours

Test
Q.2 Easy HCF and LCM 14 Apr 2026
If HCF(a, b) = 15 and LCM(a, b) = 450, and a = 75, find b.
A90
B100
C120
D150
Correct Answer:  A. 90
EXPLANATION

HCF × LCM = a × b. 15 × 450 = 75 × b. 6750 = 75b. b = 90

Test
Q.3 Easy HCF and LCM 14 Apr 2026
An article is sold at ₹1200 with a loss of 20%. What was the cost price?
A₹1400
B₹1500
C₹1600
D₹1800
Correct Answer:  B. ₹1500
EXPLANATION

Selling Price = Cost Price × (1 - Loss%). 1200 = CP × 0.8. CP = 1200/0.8 = ₹1500

Test
Q.4 Easy HCF and LCM 14 Apr 2026
The LCM of 18, 24, and 36 is?
A72
B108
C144
D216
Correct Answer:  A. 72
EXPLANATION

18 = 2 × 3^2, 24 = 2^3 × 3, 36 = 2^2 × 3^2. LCM = 2^3 × 3^2 = 8 × 9 = 72

Test
Q.5 Easy HCF and LCM 14 Apr 2026
Simple Interest on ₹5000 at 8% per annum for 2 years is?
A₹400
B₹600
C₹800
D₹1000
Correct Answer:  C. ₹800
EXPLANATION

SI = (Principal × Rate × Time)/100 = (5000 × 8 × 2)/100 = 80000/100 = ₹800

Test
Q.6 Easy HCF and LCM 14 Apr 2026
Two pipes A and B can fill a tank in 20 hours and 30 hours respectively. If both pipes are opened together, in how many hours will the tank be filled?
A10 hours
B12 hours
C15 hours
D18 hours
Correct Answer:  B. 12 hours
EXPLANATION

Work done by A in 1 hour = 1/20. Work done by B in 1 hour = 1/30. Combined = 1/20 + 1/30 = 5/60 = 1/12. Time = 12 hours

Test
Q.7 Easy HCF and LCM 14 Apr 2026
A man buys an article for ₹800 and sells it at a 25% profit. What is the selling price?
A₹900
B₹1000
C₹1200
D₹1400
Correct Answer:  B. ₹1000
EXPLANATION

Selling Price = Cost Price + Profit = 800 + (25% of 800) = 800 + 200 = ₹1000

Test
Q.8 Easy HCF and LCM 14 Apr 2026
A shopkeeper has 48 apples, 72 oranges, and 96 bananas. He wants to pack them into boxes such that each box contains the same number of items of each type. What is the maximum number of boxes needed?
A12
B18
C24
D36
Correct Answer:  C. 24
EXPLANATION

Maximum boxes = HCF(48, 72, 96) = 24. Each box will have 2 apples, 3 oranges, and 4 bananas

Test
Q.9 Easy HCF and LCM 14 Apr 2026
The HCF of two numbers is 12 and their LCM is 360. If one number is 60, find the other number.
A72
B84
C96
D108
Correct Answer:  A. 72
EXPLANATION

Using the formula: HCF × LCM = Product of two numbers. 12 × 360 = 60 × Other number. Other number = 4320/60 = 72

Test
Q.10 Easy HCF and LCM 14 Apr 2026
If the HCF of 75 and 125 is 'h' and LCM is 'l', then h×l equals?
A9375
B8500
C7500
D6250
Correct Answer:  A. 9375
EXPLANATION

HCF × LCM = Product of numbers = 75 × 125 = 9375

Test
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