Which of the following numbers is divisible by both 6 and 8?

The correct answer is A: 48. For divisibility by both 6 and 8, the number must be divisible by LCM(6,8) = 24. Check: 48 ÷ 24 = 2 ✓. Option A is correct.

A merchant sold goods for ₹3,000 at a gain of 25%. What is the cost price?

The correct answer is B: ₹2,400. SP = CP × 1.25. 3000 = CP × 1.25. CP = 3000/1.25 = ₹2,400

A contractor undertakes to build a road in 75 days with 40 workers. After 25 days, only 1/4 of the road is completed. How many additional workers are needed to complete the road on time?

The correct answer is C: 40. Total work = 4 units. 1 unit done in 25 days with 40 workers. Remaining 3 units in 50 days. Workers needed = (3 × 40 × 25)/(1 × 50) = 60. Additional = 60 - 40 = 20. Wait, let me recalculate properly using work formula.

A vendor buys mangoes at ₹15 each and sells at ₹20 each. If he sells 100 mangoes, what is his total profit?

The correct answer is B: ₹500. Profit per mango = 5. Total profit = 5 × 100 = 500.

Home

Home › Subjects › Quantitative Aptitude › Numbers

Quantitative Aptitude
Numbers

Quantitative aptitude questions for competitive exams

196 Q 7 Topics Take Mock Test

Difficulty: All Easy Medium Hard 71–80 of 196

Topics in Quantitative Aptitude

All Numbers 499 HCF and LCM 150 Profit and Loss 102 Time and Work 101 Percentage 101 Simple Interest 50 Average 48

Q.71 Easy Numbers

Simple Interest on Rs. 6000 at 8% p.a. for 2.5 years is?

A Rs. 960

B Rs. 1000

C Rs. 1200

D Rs. 1500

Correct Answer: C. Rs. 1200

EXPLANATION

SI = (P × R × T)/100 = (6000 × 8 × 2.5)/100 = 1200

Test

Q.72 Easy Numbers

The ratio of profit to cost price is 3:5. What is the profit percentage?

A 40%

B 50%

C 60%

D 75%

Correct Answer: C. 60%

EXPLANATION

If CP = 5, Profit = 3. Profit% = (3/5) × 100 = 60%

Test

Q.73 Easy Numbers

A person invests Rs. 5000 at 12% p.a. compound interest for 2 years. What is the final amount?

A Rs. 6272

B Rs. 6280

C Rs. 6300

D Rs. 6400

Correct Answer: B. Rs. 6280

EXPLANATION

A = P(1 + r/100)^n = 5000(1.12)^2 = 5000 × 1.2544 = 6272

Test

Q.74 Easy Numbers

A train travels 240 km in 4 hours. If its speed is increased by 20%, how much distance will it cover in 5 hours?

A 300 km

B 320 km

C 360 km

D 400 km

Correct Answer: C. 360 km

EXPLANATION

Original speed = 240/4 = 60 km/h. New speed = 60 × 1.2 = 72 km/h. Distance in 5 hours = 72 × 5 = 360 km

Test

Q.75 Easy Numbers

A shopkeeper marks an item 40% above the cost price. If he gives a discount of 15% on the marked price, what is his profit percentage?

A 19%

B 25%

C 15%

D 22%

Correct Answer: A. 19%

EXPLANATION

Let CP = 100. MP = 140. After 15% discount, SP = 140 × 0.85 = 119. Profit = 19%

Test

Q.76 Easy Numbers

Two stations are 480 km apart. A train covers distance in 8 hours. What is its speed?

A 50 km/h

B 55 km/h

C 60 km/h

D 65 km/h

Correct Answer: C. 60 km/h

EXPLANATION

Speed = 480/8 = 60 km/h

Test

Q.77 Easy Numbers

The price of an item increases from Rs. 250 to Rs. 300. What is the percentage increase?

A 15%

B 18%

C 20%

D 25%

Correct Answer: C. 20%

EXPLANATION

Increase = 300 - 250 = 50. Percentage = (50/250) × 100 = 20%

Test

Q.78 Easy Numbers

A boat can travel 120 km downstream in 4 hours. If current speed is 5 km/h, what is boat's speed in still water?

A 25 km/h

B 30 km/h

C 35 km/h

D 40 km/h

Correct Answer: A. 25 km/h

EXPLANATION

Downstream speed = 120/4 = 30 km/h. Boat speed = 30 - 5 = 25 km/h

Test

Q.79 Easy Numbers

If 40% of a number is 144, what is the number?

A 320

B 340

C 360

D 380

Correct Answer: C. 360

EXPLANATION

0.4 × x = 144. x = 144/0.4 = 360

Test

Q.80 Easy Numbers

What percentage of 480 is 72?

A 12.5%

B 15%

C 17.5%

D 20%

Correct Answer: B. 15%

EXPLANATION

(72/480) × 100 = 15%

Test

1…6 7 8 9 10…20

All Subjects & Topics

Govt. Exams

Entrance Exams

Teacher Exams

Subjects

Quick Links

Quantitative Aptitude Numbers

Quantitative Aptitude
Numbers