Question
The speed of a boat while
traveling upstream is 6 km/hr. If the boat takes a total of 56 hours to travel 264 km downstream and the same distance upstream, what is the speed of the boat in still water?Solution
ATQ,
Let the speed of the boat in still water be ‘b’ km/hr Therefore, speed of current = (b – 6) km/hr According to the question, {264/(2b – 6)} + 264/6 = 56 Or, 2b – 6 = 264/12 Or, b = 14Â
Tanvi has 5 pencils, and Mahima has 4 pencils. When Khurram joins them, all 9 pencils are redistributed equally among the three, meaning each person get...
What is the average of first 24 multiples of 2.4?
If a number 'x' is increased by 30% and then decreased by 20%, the resultant obtained is 416, then find the value of 'x'.
The population of a town grows by 25% in the first year, declines by 20% in the second year, and rises by 30% in the third year. What is the total perce...
 Find the range of the given data:
18, 23, 36, 41, 55, 12, 62, 50, 48
Tanu has 5 stickers, and Megha has 4 stickers. When Kasish joins them, all 9 stickers are redistributed equally among the three, meaning each person rec...
A set consists of four consecutive even numbers and three consecutive odd numbers. The smallest even number is three times the value of the smallest odd...
- Average marks scored by a student in 5 subjects is 75. If average marks scored by him excluding his highest and lowest marks is 60 and highest marks scored...
Divisor is 7 times of Quotient and 3 times of its remainder. If the remainder is 7. Find the dividend?
Find the range of the given data:
110, 135, 120, 95, 105, 115, 125, 140