If 4 workers can assemble a car in 6 hours, how long would it take 15 workers to assemble the same car?
A
102 minutes
B
80 minutes
C
96 minutes
D
72 minutes
উত্তরের বিবরণ
Question: If 4 workers can assemble a car in 6 hours, how long would it take 15 workers to assemble the same car?
Solution:
Given,
4 workers can assemble a car in 6 hours
∴ 1 workers can assemble a car in (6 × 4) hours
∴ 15 workers can assemble a car in (24/15) hours
= (24 × 60)/15 minutes
= 96 minutes
0
Updated: 2 weeks ago
Musa can do 1/4 of a work in 6 days. In how many days will he complete the work?
Created: 2 weeks ago
A
24 days
B
12 days
C
36 days
D
15 days
Question: Musa can do 1/4 of a work in 6 days. In how many days will he complete the work?
Solution:
Musa can do 1/4 of a work in 6 days.
∴ He will complete the work in = 6 × 4 = 24 days
∴ Musa will complete the work in 24 days.
0
Updated: 2 weeks ago
5 pumps working 6 hours a day can empty a tank in 3 days. How many hours a day must 3 pumps work to empty the tank in 2 days?
Created: 1 week ago
A
15 hours
B
20 hours
C
18 hours
D
16 hours
Question: 5 pumps working 6 hours a day can empty a tank in 3 days. How many hours a day must 3 pumps work to empty the tank in 2 days?
Solution:
5 pumps এর প্রয়োজনীয় সময় 3 × 6 = 18 ঘণ্টা
1 pump এর প্রয়োজনীয় সময় = 18 × 5 = 90 ঘণ্টা
3 pumps এর প্রয়োজনীয় সময় = 90/3 = 30 ঘণ্টা
∴ 3টি পাম্পকে 2 দিনে কাজটি শেষ করতে প্রতিদিন কাজ করতে হবে,
= (30/2) = 15 ঘণ্টা।
0
Updated: 1 week ago
P can complete a piece of work in 18 days, while Q can complete the same work in 36 days. If both P and Q work together, in how many days will they be able to complete the entire work?
Created: 2 weeks ago
A
18 days
B
12 days
C
36 days
D
6 days
Question: P can complete a piece of work in 18 days, while Q can complete the same work in 36 days. If both P and Q work together, in how many days will they be able to complete the entire work?
Solution:
Given that,
P can do a piece of the work in 18 days and Q can do same work in 36 days
Now,
Let the total work = LCM(18, 36) = 36
Hence, total work = 36 units
Thus,
P does each day = 36 ÷ 18 = 2 units
Q does each day = 36 ÷ 36 = 1 unit
Hence, time taken by them to finish the work together = 36 ÷ (1 + 2) = 12 days.
∴ In 12 days working together they will complete the entire work.
0
Updated: 2 weeks ago
