Question
If '@' denotes 'addition', '#' denotes 'subtraction',
'$' denotes 'multiplication' and '%' denotes 'division', then, what will be the value of the following expression? 32 @ 25 $ [(144 % 12 @ 10) @ (94 # 5 $ 8) ] % 4Solution
32 @ 25 $ [(144 % 12 @ 10) @ (94 # 5 $ 8) ] % 4 32 + 25 X [(144 ÷ 12 + 10) + (94 - 5 X 8) ] ÷ 4 32 + 25 X [(12 + 10) + (94 - 40) ] ÷ 4 32 + 25 X [22 + 54] ÷ 4 32 + 25 X 76 ÷ 4 32 + 25 X 19 32 + 475 = 507
A man can row at a speed of 20 km/hr in still water to a certain upstream point and back to the starting point in a river which flows at 5 km/hr. Find h...
The speed of a boat going upstream is 20% slower than when it is traveling downstream. The boat travels 90 km in still water over a period of 4 hours. C...
The speed of a boat in still water is 30 km/hr. If the boat covers 160 km in upstream in 8 hours, then find the time taken by the boat to travel 160 km ...
A man can go on a motor boat with a speed of 15 km/hour in still water to a certain upstream point and come back to the starting point in a river which ...
A man can go on a motor boat with a speed of 15 km/hour in still water, he goes to a certain distance upstream and come back to the starting point in a ...
A man can row at 4 kmph in still water. If the velocity of current is 2 kmph and it takes him 8 hour to row to a place and come back, how far is the place?
The ratio of the speed of boats ‘A’ and ‘B’ in still water is 8:9, respectively. The speed of the current is 25% of the speed of boat ‘A’ in...
The time taken by a boat to cover 72 km downstream is 3 hours less than the boat to cover a certain distance in upstream. The dow...
The income of ‘A’ increases by 20% every year. If his income 3 years hence from now will be Rs. 13478.4, then find his income a year before from now...
The speed of a boat in still water is 6 km/hr more than that of the current. The time taken by the boat to cover 925 km downstream is 18.5 hours. Find t...