Question
The value of A’s car is depreciating by 10% every year
whereas the value of his house is appreciating by 8% each year as compared to the previous year. If in 2018, the value of his car and house was Rs. 600000 and Rs. 1000000, respectively then find the sum of the values of his car and house together in 2020.Solution
Total sum of values = 600000 × 0.90 × 0.90 + 1000000 × 1.08 × 1.08 = 486000 + 1166400 = Rs. 1652400
A boat covers a distance of 57 km upstream in 9.5 hours. If the boat's speed in still water had been doubled, it would have taken only 2 hours to cover...
The speed of a motorboat in still water is 25 km/h and the speed of the stream is 5 km/h. The boat first goes 120 km downstream and then covers a certa...
A man can row his boat with the stream at 40 km/h and against the stream in 5.5 km/hours. Find the rate of the stream.
A man rows to a place 42 km away and comes back to the starting point. If the speed of the stream is 2 km/hr and the speed of the boat in still water is...
A boat goes 24 km downstream in 2 hours and comes back the same distance upstream in 3 hours. Find the speed of the boat in still water and the speed of...
A boat can cover 180 km in downstream in 18 hours and 125 km in upstream in 5 hours. Find the distance travelled by the boat in still water in 10 hours.
If a man rows at the rate of 17 kmph in still water and his rate against the current is 7 kmph, then find the man’s speed with downstream....
Find the total distance covered by boat in each upstream and downstream in 6 hours if the speed of boat in still water and speed of current is 18 km/h a...
A man can row his boat with the stream at 15 km/h and against the stream in 8 km/hours. The man’s rate isÂ
Two boats X and Y start towards each other from two places, 76 km apart. Speed of the boat X and Y in still water are 8 km/hr and 11 km/hr respectively....
