Explanation

Speed = 120 miles / 3 hours = 40 miles/hour

Distance in 5 hours = 40 × 5 = 200 miles

Last verified on 15-03-2026

Explanation

First convert 10 minutes into hours:

• 1 hour = 60 minutes $1\text{ hour}=60\text{ minutes}$

• 10 minutes=10/60​=1/6​ hour

Distance = Speed × Time

d = vt

• Speed $v=60$ km/h

• Time $\frac{\mathrm{<span\; style="font-family:\; Overpass,\; sans-serif;\; font-size:\; 0.875rem;">t <span\; style="font-size:\; 0.875rem;">= </span><span\; class="vlist"\; style="font-size:\; 0.875rem;"><span\; class="sizing\; reset-size6\; size3\; mtight"><span\; class="mord\; mtight"><span\; class="mord\; mtight">1</span></span></span></span><span\; class="vlist-s"\; style="font-size:\; 0.875rem;">/6\; h </span></span>}}{}$

d=60×1/6​=10 km

$$\text{Last updated 11-02-2026}$$

Explanation

Speed = 60 km/hr

Time = 1 hr + 12 min = 1 + 12/60 = 1.2 hrs

Distance = Speed × Time = 60 × 1.2 = 72 km

Last verified on 07-03-2026

Explanation

25 m/s × (3600 s/h) × (1 km / 1000 m)

= 25 × 3.6 km/h

= 90 km/h

Last verified on 09-03-2026

Explanation

Step 1: Present ages

• Ali = 16 years

• Sister = $4\times 16=64$ years

Step 2: Let x years ago

• Ali’s age =$16-x$

• Sister’s age = $64-x$

Condition: Sister was half of Ali’s age

64−x=1/2​(16−x)

Step 3: Solve

$$128-2x=16-x$$$$112=x$$

$$Last\; updated\; on\; 09-03-2026$$

Explanation

Man earned Rs. 5000 for 40 hours.

Regular hourly rate = 5000 / 40 = Rs. 125

Overtime rate = double = 2 x 125 = Rs. 250

Total earned = Rs. 6000

Overtime pay = 6000 - 5000 = Rs. 1000

Overtime hours = 1000 / 250 = 4 hours

Total hours = 40 + 4 = 44 hours

Last verified on 06-03-2026

Explanation

Car speed = 30 km per hour

Train speed = Double of car speed
= 2 × 30
= 60 km per hour

Time given = 30 minutes = ½ hour

Distance covered by train = Speed × Time
= 60 × ½
= 30 km

Last updated 05-03-2026

Explanation

Speed of train = 90 km/h

Time = 12 minutes
Convert minutes to hours:
12 ÷ 60 = 0.2 hours

Distance = Speed × Time
= 90 × 0.2
= 18 km

Explanation

• Let the starting point be at the origin (0,0) We can track the person's position by adding the vectors of each movement: 
• 10 m North: The position becomes  (0.10)
• Turn left (West) and walk 10 m: The position becomes (10.10)
• Turn left (South) and walk 5 m: The position becomes (-10, 5)
• Turn left (East) and walk 15 m: The position becomes (10, 15, 5) = (5, 5)

Explanation

Given:

• Distance = 20 km

• Time = 1 hour 40 minutes = 100 minutes

Time for 1 km:

100 minutes/20 km​=5 minutes per km

Final Answer: 5 minutes

Question updated 03-March-2026